diff --git a/SabreTools.Helper/Data/Build.cs b/SabreTools.Helper/Data/Build.cs
index ffc05f06..8cc742e7 100644
--- a/SabreTools.Helper/Data/Build.cs
+++ b/SabreTools.Helper/Data/Build.cs
@@ -61,12 +61,18 @@ namespace SabreTools.Helper.Data
 		/// Show the help dialog for a given class
 		/// </summary>
 		/// <param name="className">Name of the class to get help for, "Credits" for developer credits</param>
-		public static void Help(string className)
+		public static void Help(string className, string subset = null)
 		{
 			//http://stackoverflow.com/questions/14849367/how-to-determine-calling-method-and-class-name
 			string barrier = "-----------------------------------------";
 			List<string> helptext = new List<string>();
 
+			// Normalize the subset text
+			if (subset != null)
+			{
+				subset = subset.ToLowerInvariant().TrimStart('-');
+			}
+
 			// Set the help text
 			switch (className)
 			{
@@ -149,278 +155,321 @@ namespace SabreTools.Helper.Data
 					helptext.Add("  --script		Enable script mode (no clear screen)");
 
 					// DATFromDir
-					helptext.Add("  -d, --dfd, --d2d	Create a DAT from an input directory");
-						helptext.Add("	-nm, --noMD5		Don't include MD5 in output");
-						helptext.Add("	-ns, --noSHA1		Don't include SHA1 in output");
-						helptext.Add("	-b, --bare		Don't include date in file name");
-						helptext.Add("	-fp=, --forcepack=	Set force packing");
-						helptext.Add("		Supported values are:");
-						helptext.Add("		  None, Zip, Unzip");
-						helptext.Add("	-f, --files		Treat archives as files");
-						helptext.Add("	-oa, --output-all	Output in all formats");
-						helptext.Add("	-oam, --output-am	Output in AttractMode format");
-						helptext.Add("	-oc, --output-cmp	Output in CMP format");
-						helptext.Add("	-ocsv, --output-csv	Output in CSV format");
-						helptext.Add("	-od, --output-dc	Output in DOSCenter format");
-						helptext.Add("	-om, --output-miss	Output in Missfile format");
-						helptext.Add("	-omd5, --output-md5	Output in MD5 format");
-						helptext.Add("	-ool, --output-ol	Output in OfflineList format");
-						helptext.Add("	-or, --output-rc	Output in RomCenter format");
-						helptext.Add("	-os, --output-sd	Output in SabreDAT format");
-						helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
-						helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
-						helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
-						helptext.Add("	-otsv, --output-tsv	Output in TSV format");
-						helptext.Add("	-ox, --output-xml	Output in Logiqx XML format [default]");
-						helptext.Add("	-gzf, --gz-files	Allow reading of GZIP files as archives");
-						helptext.Add("	-ro, --romba		Read files from a Romba input");
-						helptext.Add("	-f=, --filename=	Set the external name of the DAT");
-						helptext.Add("	-n=, --name=		Set the internal name of the DAT");
-						helptext.Add("	-de=, --desc=		Set the description of the DAT");
-						helptext.Add("	-c=, --cat=		Set the category of the DAT");
-						helptext.Add("	-v=, --version=		Set the version of the DAT");
-						helptext.Add("	-au=, --author=		Set the author of the DAT");
-						helptext.Add("	-sd, --superdat		Enable SuperDAT creation");
-						helptext.Add("	-xof, --exclude-of	Exclude romof, cloneof, sampleof tags");
-						helptext.Add("	-ab, --add-blank	Output blank files for folders");
-						helptext.Add("	-ad, --add-date		Output dates for each file parsed");
-						helptext.Add("	-cf, --copy-files	Copy files to the temp directory before parsing");
-						helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
-						helptext.Add("	-t=, --temp=		Set the temporary directory to use");
-						helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					if (subset == null || subset == "d" || subset == "dfd" || subset == "d2d")
+					{
+						helptext.Add("  -d, --dfd, --d2d	Create a DAT from an input directory");
+							helptext.Add("	-nm, --noMD5		Don't include MD5 in output");
+							helptext.Add("	-ns, --noSHA1		Don't include SHA1 in output");
+							helptext.Add("	-b, --bare		Don't include date in file name");
+							helptext.Add("	-fp=, --forcepack=	Set force packing");
+								helptext.Add("		Supported values are:");
+								helptext.Add("		  None, Zip, Unzip");
+							helptext.Add("	-f, --files		Treat archives as files");
+							helptext.Add("	-oa, --output-all	Output in all formats");
+							helptext.Add("	-oam, --output-am	Output in AttractMode format");
+							helptext.Add("	-oc, --output-cmp	Output in CMP format");
+							helptext.Add("	-ocsv, --output-csv	Output in CSV format");
+							helptext.Add("	-od, --output-dc	Output in DOSCenter format");
+							helptext.Add("	-om, --output-miss	Output in Missfile format");
+							helptext.Add("	-omd5, --output-md5	Output in MD5 format");
+							helptext.Add("	-ool, --output-ol	Output in OfflineList format");
+							helptext.Add("	-or, --output-rc	Output in RomCenter format");
+							helptext.Add("	-os, --output-sd	Output in SabreDAT format");
+							helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
+							helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
+							helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
+							helptext.Add("	-otsv, --output-tsv	Output in TSV format");
+							helptext.Add("	-ox, --output-xml	Output in Logiqx XML format [default]");
+							helptext.Add("	-gzf, --gz-files	Allow reading of GZIP files as archives");
+							helptext.Add("	-ro, --romba		Read files from a Romba input");
+							helptext.Add("	-f=, --filename=	Set the external name of the DAT");
+							helptext.Add("	-n=, --name=		Set the internal name of the DAT");
+							helptext.Add("	-de=, --desc=		Set the description of the DAT");
+							helptext.Add("	-c=, --cat=		Set the category of the DAT");
+							helptext.Add("	-v=, --version=		Set the version of the DAT");
+							helptext.Add("	-au=, --author=		Set the author of the DAT");
+							helptext.Add("	-sd, --superdat		Enable SuperDAT creation");
+							helptext.Add("	-xof, --exclude-of	Exclude romof, cloneof, sampleof tags");
+							helptext.Add("	-ab, --add-blank	Output blank files for folders");
+							helptext.Add("	-ad, --add-date		Output dates for each file parsed");
+							helptext.Add("	-cf, --copy-files	Copy files to the temp directory before parsing");
+							helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
+							helptext.Add("	-t=, --temp=		Set the temporary directory to use");
+							helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					}
+					
 
 					// Extension Split
-					helptext.Add("  -es, --ext-split	Split a DAT by two file extensions");
-						helptext.Add("	-exta=			First set of extensions (comma-separated)");
-						helptext.Add("	-extb=			Second set of extensions (comma-separated)");
-						helptext.Add("	-out=			Output directory");
+					if (subset == null || subset == "es" || subset == "ext-split")
+					{
+						helptext.Add("  -es, --ext-split	Split a DAT by two file extensions");
+							helptext.Add("	-exta=			First set of extensions (comma-separated)");
+							helptext.Add("	-extb=			Second set of extensions (comma-separated)");
+							helptext.Add("	-out=			Output directory");
+					}
 
 					// Extract and Remove Headers
-					helptext.Add("  -ex, --extract	Extract and remove copier headers");
-						helptext.Add("	-out=				Output directory");
+					if (subset == null || subset == "ex" || subset == "extract")
+					{
+						helptext.Add("  -ex, --extract	Extract and remove copier headers");
+							helptext.Add("	-out=				Output directory");
+					}
 
 					// Hash Split
-					helptext.Add("  -hs, --hash-split	Split a DAT or folder by best-available hashes");
-						helptext.Add("	-out=			Output directory");
+					if (subset == null || subset == "hs" || subset == "hash-split")
+					{
+						helptext.Add("  -hs, --hash-split	Split a DAT or folder by best-available hashes");
+							helptext.Add("	-out=			Output directory");
+					}
 
 					// Level/SuperDAT Split
-					helptext.Add("  -ls, --lvl-split	Split a SuperDAT or folder by internal path");
-						helptext.Add("	-out=			Output directory");
-						helptext.Add("	-s, --short		Use short output names");
-						helptext.Add("	-ba, --base		Use source DAT as base name for outputs");
+					if (subset == null || subset == "ls" || subset == "lvl-split")
+					{
+						helptext.Add("  -ls, --lvl-split	Split a SuperDAT or folder by internal path");
+							helptext.Add("	-out=			Output directory");
+							helptext.Add("	-s, --short		Use short output names");
+							helptext.Add("	-ba, --base		Use source DAT as base name for outputs");
+					}
 
 					// Restore Headers
-					helptext.Add("	-re, --restore		Restore header to file based on SHA-1");
-						helptext.Add("	-out=				Output directory");
+					if (subset == null || subset == "re" || subset == "restore")
+					{
+						helptext.Add("	-re, --restore		Restore header to file based on SHA-1");
+							helptext.Add("	-out=				Output directory");
+					}
 
 					// Sort
-					helptext.Add("  -ss, --sort		Sort input files by a set of DATs");
-						helptext.Add("	-dat=			Input DAT to rebuild against");
-						helptext.Add("	-out=			Output directory");
-						helptext.Add("	-t=, --temp=		Set the temporary directory to use");
-						helptext.Add("	-del, --delete		Delete fully rebuilt input files");
-						helptext.Add("	-in, --inverse		Rebuild only files not in DAT");
-						helptext.Add("	-qs, --quick		Enable quick scanning of archives");
-						helptext.Add("	-ad, --add-date		Add original dates from DAT, if possible");
-						//helptext.Add("	-t7z			Enable Torrent7z output");
-						helptext.Add("	-tar			Enable TAR output");
-						helptext.Add("	-tgz			Enable TorrentGZ output");
-						helptext.Add("		-r, --romba		Enable Romba depot dir output");
-						//helptext.Add("	-tlrz			Enable TorrentLRZ output");
-						//helptext.Add("	-trar			Enable TorrentRAR output");
-						//helptext.Add("	-txz			Enable TorrentXZ output");
-						helptext.Add("	-tzip			Enable TorrentZip output");
-						helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
-						helptext.Add("	-7z={1}			Set scanning level for 7z archives");
-						helptext.Add("	-gz={2}			Set scanning level for GZip archives");
-						helptext.Add("	-rar={2}		Set scanning level for RAR archives");
-						helptext.Add("	-zip={1}		Set scanning level for ZIP archives");
-						helptext.Add("	-ud, --update-dat	Output updated DAT to output directory");
-						helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					if (subset == null || subset == "ss" || subset == "sort")
+					{
+						helptext.Add("  -ss, --sort		Sort input files by a set of DATs");
+							helptext.Add("	-dat=			Input DAT to rebuild against");
+							helptext.Add("	-out=			Output directory");
+							helptext.Add("	-t=, --temp=		Set the temporary directory to use");
+							helptext.Add("	-del, --delete		Delete fully rebuilt input files");
+							helptext.Add("	-in, --inverse		Rebuild only files not in DAT");
+							helptext.Add("	-qs, --quick		Enable quick scanning of archives");
+							helptext.Add("	-ad, --add-date		Add original dates from DAT, if possible");
+							//helptext.Add("	-t7z			Enable Torrent7z output");
+							helptext.Add("	-tar			Enable TAR output");
+							helptext.Add("	-tgz			Enable TorrentGZ output");
+							helptext.Add("		-r, --romba		Enable Romba depot dir output");
+							//helptext.Add("	-tlrz			Enable TorrentLRZ output");
+							//helptext.Add("	-trar			Enable TorrentRAR output");
+							//helptext.Add("	-txz			Enable TorrentXZ output");
+							helptext.Add("	-tzip			Enable TorrentZip output");
+							helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
+							helptext.Add("	-7z={1}			Set scanning level for 7z archives");
+							helptext.Add("	-gz={2}			Set scanning level for GZip archives");
+							helptext.Add("	-rar={2}		Set scanning level for RAR archives");
+							helptext.Add("	-zip={1}		Set scanning level for ZIP archives");
+							helptext.Add("	-ud, --update-dat	Output updated DAT to output directory");
+							helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					}
 
 					// Sort Depot
-					helptext.Add("  -ssd, --sort		Sort input files by a set of DATs");
-						helptext.Add("	-dat=			Input DAT to rebuild against");
-						helptext.Add("	-out=			Output directory");
-						helptext.Add("	-t=, --temp=		Set the temporary directory to use");
-						helptext.Add("	-del, --delete		Delete fully rebuilt input files");
-						helptext.Add("	-in, --inverse		Rebuild only files not in DAT");
-						helptext.Add("	-ad, --add-date		Add original dates from DAT, if possible");
-						//helptext.Add("	-t7z			Enable Torrent7z output");
-						helptext.Add("	-tar			Enable TAR output");
-						helptext.Add("	-tgz			Enable TorrentGZ output");
-						helptext.Add("		-r, --romba		Enable Romba depot dir output");
-						//helptext.Add("	-tlrz			Enable TorrentLRZ output");
-						//helptext.Add("	-trar			Enable TorrentRAR output");
-						//helptext.Add("	-txz			Enable TorrentXZ output");
-						helptext.Add("	-tzip			Enable TorrentZip output");
-						helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
-						helptext.Add("	-ud, --update-dat	Output updated DAT to output directory");
-						helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					if (subset == null || subset == "ssd" || subset == "sort-depot")
+					{
+						helptext.Add("  -ssd, --sort-depot	Sort input files by a set of DATs");
+							helptext.Add("	-dat=			Input DAT to rebuild against");
+							helptext.Add("	-out=			Output directory");
+							helptext.Add("	-t=, --temp=		Set the temporary directory to use");
+							helptext.Add("	-del, --delete		Delete fully rebuilt input files");
+							helptext.Add("	-in, --inverse		Rebuild only files not in DAT");
+							helptext.Add("	-ad, --add-date		Add original dates from DAT, if possible");
+							//helptext.Add("	-t7z			Enable Torrent7z output");
+							helptext.Add("	-tar			Enable TAR output");
+							helptext.Add("	-tgz			Enable TorrentGZ output");
+							helptext.Add("		-r, --romba		Enable Romba depot dir output");
+							//helptext.Add("	-tlrz			Enable TorrentLRZ output");
+							//helptext.Add("	-trar			Enable TorrentRAR output");
+							//helptext.Add("	-txz			Enable TorrentXZ output");
+							helptext.Add("	-tzip			Enable TorrentZip output");
+							helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
+							helptext.Add("	-ud, --update-dat	Output updated DAT to output directory");
+							helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					}
 
 					// Stats
-					helptext.Add("  -st, --stats		Get statistics on all input DATs");
-						helptext.Add("	-bc, --baddump-col	Add baddump stats to output");
-						helptext.Add("	-csv, --csv		Output in Comma-Separated Value format");
-						helptext.Add("	-f=, --filename=	Set the filename for the output");
-						helptext.Add("	-out=			Output directory");
-						helptext.Add("	-html, --html		Output in HTML format");
-						helptext.Add("	-nc, --nodump-col	Add nodump stats to output");
-						helptext.Add("	-si, --single		Show individual statistics");
-						helptext.Add("	-tsv, --tsv		Output in Tab-Separated Value format");
+					if (subset == null || subset == "st" || subset == "stats")
+					{
+						helptext.Add("  -st, --stats		Get statistics on all input DATs");
+							helptext.Add("	-bc, --baddump-col	Add baddump stats to output");
+							helptext.Add("	-csv, --csv		Output in Comma-Separated Value format");
+							helptext.Add("	-f=, --filename=	Set the filename for the output");
+							helptext.Add("	-out=			Output directory");
+							helptext.Add("	-html, --html		Output in HTML format");
+							helptext.Add("	-nc, --nodump-col	Add nodump stats to output");
+							helptext.Add("	-si, --single		Show individual statistics");
+							helptext.Add("	-tsv, --tsv		Output in Tab-Separated Value format");
+					}
 
 					// Type Split
-					helptext.Add("  -ts, --type-split		Split a DAT or folder by file types (rom/disk)");
-						helptext.Add("	-out=			Output directory");
+					if (subset == null || subset == "ts" || subset == "type-split")
+					{
+						helptext.Add("  -ts, --type-split		Split a DAT or folder by file types (rom/disk)");
+							helptext.Add("	-out=			Output directory");
+					}
 
 					// Update
-					helptext.Add("  -ud, --update		Update a DAT file");
-						helptext.Add("	-oa, --output-all	Output in all formats");
-						helptext.Add("	-oam, --output-am	Output in AttractMode format");
-						helptext.Add("	-oc, --output-cmp	Output in CMP format");
-						helptext.Add("	-ocsv, --output-csv	Output in CSV format");
-							helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
-							helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
-							helptext.Add("	  -q, --quotes			Put double-quotes around each item");
-						helptext.Add("	-od, --output-dc	Output in DOSCenter format");
-						helptext.Add("	-om, --output-miss	Output in Missfile format");
-							helptext.Add("	  -r, --roms			Output roms to miss instead of sets");
-							helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
-							helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
-							helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
-							helptext.Add("	  -q, --quotes			Put double-quotes around each item");
-							helptext.Add("	  -ae=, --add-ext=		Add an extension to each item");
-							helptext.Add("	  -rep=, --rep-ext=		Replace all extensions with specified");
-							helptext.Add("	  -rme, --rem-ext		Remove all extensions from each item");
-							helptext.Add("	  -ro, --romba			Output in Romba format (requires SHA-1)");
-							helptext.Add("	  -tsv, --tsv			Output in Tab-Separated Value format");
-							helptext.Add("	  -csv, --csv			Output in Comma-Separated Value format");
-						helptext.Add("	-omd5, --output-md5	Output in MD5 format");
-							helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
-						helptext.Add("	-ool, --output-ol	Output in OfflineList format");
-						helptext.Add("	-or, --output-rc	Output in RomCenter format");
-						helptext.Add("	-os, --output-sd	Output in SabreDAT format");
-						helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
-							helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
-						helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
-							helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
-						helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
-						helptext.Add("	-otsv, --output-tsv	Output in TSV format");
-							helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
-							helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
-							helptext.Add("	  -q, --quotes			Put double-quotes around each item");
-						helptext.Add("	-ox, --output-xml	Output in Logiqx XML format");
-						helptext.Add("	-f=, --filename=	Set a new filename");
-						helptext.Add("	-n=, --name=		Set a new internal name");
-						helptext.Add("	-de=, --desc=		Set a new description");
-						helptext.Add("	-r=, --root=		Set a new rootdir");
-						helptext.Add("	-ca=, --category=	Set a new category");
-						helptext.Add("	-v=, --version=		Set a new version");
-						helptext.Add("	-da=, --date=		Set a new date");
-						helptext.Add("	-au=, --author=		Set a new author");
-						helptext.Add("	-em=, --email=		Set a new email");
-						helptext.Add("	-hp=, --homepage=	Set a new homepage");
-						helptext.Add("	-u=, --url=		Set a new URL");
-						helptext.Add("	-co=, --comment=	Set a new comment");
-						helptext.Add("	-h=, --header=		Set a new header skipper");
-						helptext.Add("	-sd=, --superdat	Set SuperDAT type");
-						helptext.Add("	-fm=, --forcemerge=	Set force merging");
-							helptext.Add("		Supported values are:");
-							helptext.Add("		  None, Split, Full");
-						helptext.Add("	-fn=, --forcend=	Set force nodump");
-							helptext.Add("		Supported values are:");
-							helptext.Add("		  None, Obsolete, Required, Ignore");
-						helptext.Add("	-fp=, --forcepack=	Set force packing");
-							helptext.Add("		Supported values are:");
-							helptext.Add("		  None, Zip, Unzip");
-						helptext.Add("	-xof, --exclude-of	Exclude romof, cloneof, sampleof tags");
-						helptext.Add("	-clean			Clean game names according to WoD standards");
-						helptext.Add("	-sl, --softlist	Use Software List name instead of description");
-						helptext.Add("	-dm, --dat-merged Create merged sets");
-						helptext.Add("	-ds, --dat-split Create split sets");
-						helptext.Add("	-dnm, --dat-nonmerged Create non-merged sets");
-						helptext.Add("	-df, --dat-fullnonmerged Create fully non-merged sets");
-						helptext.Add("	-trim			Trim file names to fit NTFS length");
-							helptext.Add("		-rd=, --root-dir=	Set the root directory for calc");
-						helptext.Add("	-si, --single		All game names replaced by '!'");
-						helptext.Add("	-dd, --dedup		Enable deduping in the created DAT");
-						helptext.Add("	-m, --merge		Merge the input DATs");
-							helptext.Add("		-b, --bare		Don't include date in automatic name");
-						helptext.Add("	-di, --diff		Create diffdats from inputs (all outputs)");
-							helptext.Add("		-b, --bare		Don't include date in automatic name");
-							helptext.Add("		-c, --cascade		Enable cascaded diffing");
-								helptext.Add("			-ip, --inplace		Enable inplace, cascaded diff");
-								helptext.Add("			-sf, --skip		Skip output of first DAT");
-							helptext.Add("		-rc, --rev-cascade	Enable reverse cascaded diffing");
-								helptext.Add("			-ip, --inplace		Enable inplace, cascaded diff");
-								helptext.Add("			-sf, --skip		Skip output of first DAT");
-						helptext.Add("	-did, --diff-du		Create diffdat containing just duplicates");
-							helptext.Add("		[Can be used with other -diX flags]");
-							helptext.Add("		-b, --bare		Don't include date in automatic name");
-						helptext.Add("	-dii, --diff-in		Create diffdats for individual DATs");
-							helptext.Add("		[Can be used with other -diX flags]");
-							helptext.Add("		-b, --bare		Don't include date in automatic name");
-						helptext.Add("	-din, --diff-nd		Create diffdat containing no duplicates");
-							helptext.Add("		[Can be used with other -diX flags]");
-							helptext.Add("		-b, --bare		Don't include date in automatic name");
-						helptext.Add("	-gn=, --game-name=	Filter by game name");
-						helptext.Add("	-ngn=, --not-game=	Filter by not game name");
-						helptext.Add("	-rn=, --rom-name=	Filter by rom name");
-						helptext.Add("	-nrn=, --not-rom=	Filter by not rom name");
-						helptext.Add("	-rt=, --rom-type=	Filter by rom type");
-						helptext.Add("	-nrt=, --not-type=	Filter by not rom type");
-						helptext.Add("	-sgt=, --greater=	Filter by size >=");
-						helptext.Add("	-slt=, --less=		Filter by size <=");
-						helptext.Add("	-seq=, --equal=		Filter by size ==");
-						helptext.Add("	-crc=, --crc=		Filter by CRC hash");
-						helptext.Add("	-ncrc=, --not-crc=	Filter by not CRC hash");
-						helptext.Add("	-md5=, --md5=		Filter by MD5 hash");
-						helptext.Add("	-nmd5=, --not-md5=	Filter by not MD5 hash");
-						helptext.Add("	-sha1=, --sha1=		Filter by SHA-1 hash");
-						helptext.Add("	-nsha1=, --not-sha1=	Filter by not SHA-1 hash");
-						helptext.Add("	-is=, --status=		Include only items with a given status");
-							helptext.Add("		Supported values are:");
-								helptext.Add("		  None, Good, BadDump, Nodump, Verified");
-						helptext.Add("	-nis=, --not-status=	Exclude items with a given status");
-							helptext.Add("		Supported values are:");
-								helptext.Add("		  None, Good, BadDump, Nodump, Verified");
-						helptext.Add("	-gt=, --game-type=	Include only games with a given type");
-							helptext.Add("		Supported values are:");
-								helptext.Add("		  None, Bios, Device, Mechanical");
-						helptext.Add("	-ngt=, --not-gtype=	Exclude only games with a given type");
-							helptext.Add("		Supported values are:");
-								helptext.Add("		  None, Bios, Device, Mechanical");
-						helptext.Add("	-run, --runnable	Include only items that are marked runnable");
-						helptext.Add("	-nrun, --not-run	Include only items that are marked unrunnable");
-						helptext.Add("	-out=			Output directory (overridden by --inplace)");
-						helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+					if (subset == null || subset == "ud" || subset == "update")
+					{
+						helptext.Add("  -ud, --update		Update a DAT file");
+							helptext.Add("	-oa, --output-all	Output in all formats");
+							helptext.Add("	-oam, --output-am	Output in AttractMode format");
+							helptext.Add("	-oc, --output-cmp	Output in CMP format");
+							helptext.Add("	-ocsv, --output-csv	Output in CSV format");
+								helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
+								helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
+								helptext.Add("	  -q, --quotes			Put double-quotes around each item");
+							helptext.Add("	-od, --output-dc	Output in DOSCenter format");
+							helptext.Add("	-om, --output-miss	Output in Missfile format");
+								helptext.Add("	  -r, --roms			Output roms to miss instead of sets");
+								helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+								helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
+								helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
+								helptext.Add("	  -q, --quotes			Put double-quotes around each item");
+								helptext.Add("	  -ae=, --add-ext=		Add an extension to each item");
+								helptext.Add("	  -rep=, --rep-ext=		Replace all extensions with specified");
+								helptext.Add("	  -rme, --rem-ext		Remove all extensions from each item");
+								helptext.Add("	  -ro, --romba			Output in Romba format (requires SHA-1)");
+								helptext.Add("	  -tsv, --tsv			Output in Tab-Separated Value format");
+								helptext.Add("	  -csv, --csv			Output in Comma-Separated Value format");
+							helptext.Add("	-omd5, --output-md5	Output in MD5 format");
+								helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+							helptext.Add("	-ool, --output-ol	Output in OfflineList format");
+							helptext.Add("	-or, --output-rc	Output in RomCenter format");
+							helptext.Add("	-os, --output-sd	Output in SabreDAT format");
+							helptext.Add("	-osfv, --ouput-sfv	Output in SFV format");
+								helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+							helptext.Add("	-osha1, --output-sha1	Output in SHA-1 format");
+								helptext.Add("	  -gp, --game-prefix		Add game name as a prefix");
+							helptext.Add("	-osl, --output-sl	Output in Softwarelist format");
+							helptext.Add("	-otsv, --output-tsv	Output in TSV format");
+								helptext.Add("	  -pre=, --prefix=		Set prefix for all lines");
+								helptext.Add("	  -post=, --postfix=		Set postfix for all lines");
+								helptext.Add("	  -q, --quotes			Put double-quotes around each item");
+							helptext.Add("	-ox, --output-xml	Output in Logiqx XML format");
+							helptext.Add("	-f=, --filename=	Set a new filename");
+							helptext.Add("	-n=, --name=		Set a new internal name");
+							helptext.Add("	-de=, --desc=		Set a new description");
+							helptext.Add("	-r=, --root=		Set a new rootdir");
+							helptext.Add("	-ca=, --category=	Set a new category");
+							helptext.Add("	-v=, --version=		Set a new version");
+							helptext.Add("	-da=, --date=		Set a new date");
+							helptext.Add("	-au=, --author=		Set a new author");
+							helptext.Add("	-em=, --email=		Set a new email");
+							helptext.Add("	-hp=, --homepage=	Set a new homepage");
+							helptext.Add("	-u=, --url=		Set a new URL");
+							helptext.Add("	-co=, --comment=	Set a new comment");
+							helptext.Add("	-h=, --header=		Set a new header skipper");
+							helptext.Add("	-sd=, --superdat	Set SuperDAT type");
+							helptext.Add("	-fm=, --forcemerge=	Set force merging");
+								helptext.Add("		Supported values are:");
+								helptext.Add("		  None, Split, Full");
+							helptext.Add("	-fn=, --forcend=	Set force nodump");
+								helptext.Add("		Supported values are:");
+								helptext.Add("		  None, Obsolete, Required, Ignore");
+							helptext.Add("	-fp=, --forcepack=	Set force packing");
+								helptext.Add("		Supported values are:");
+								helptext.Add("		  None, Zip, Unzip");
+							helptext.Add("	-xof, --exclude-of	Exclude romof, cloneof, sampleof tags");
+							helptext.Add("	-clean			Clean game names according to WoD standards");
+							helptext.Add("	-sl, --softlist	Use Software List name instead of description");
+							helptext.Add("	-dm, --dat-merged Create merged sets");
+							helptext.Add("	-ds, --dat-split Create split sets");
+							helptext.Add("	-dnm, --dat-nonmerged Create non-merged sets");
+							helptext.Add("	-df, --dat-fullnonmerged Create fully non-merged sets");
+							helptext.Add("	-trim			Trim file names to fit NTFS length");
+								helptext.Add("		-rd=, --root-dir=	Set the root directory for calc");
+							helptext.Add("	-si, --single		All game names replaced by '!'");
+							helptext.Add("	-dd, --dedup		Enable deduping in the created DAT");
+							helptext.Add("	-m, --merge		Merge the input DATs");
+								helptext.Add("		-b, --bare		Don't include date in automatic name");
+							helptext.Add("	-di, --diff		Create diffdats from inputs (all outputs)");
+								helptext.Add("		-b, --bare		Don't include date in automatic name");
+								helptext.Add("		-c, --cascade		Enable cascaded diffing");
+									helptext.Add("			-ip, --inplace		Enable inplace, cascaded diff");
+									helptext.Add("			-sf, --skip		Skip output of first DAT");
+								helptext.Add("		-rc, --rev-cascade	Enable reverse cascaded diffing");
+									helptext.Add("			-ip, --inplace		Enable inplace, cascaded diff");
+									helptext.Add("			-sf, --skip		Skip output of first DAT");
+							helptext.Add("	-did, --diff-du		Create diffdat containing just duplicates");
+								helptext.Add("		[Can be used with other -diX flags]");
+								helptext.Add("		-b, --bare		Don't include date in automatic name");
+							helptext.Add("	-dii, --diff-in		Create diffdats for individual DATs");
+								helptext.Add("		[Can be used with other -diX flags]");
+								helptext.Add("		-b, --bare		Don't include date in automatic name");
+							helptext.Add("	-din, --diff-nd		Create diffdat containing no duplicates");
+								helptext.Add("		[Can be used with other -diX flags]");
+								helptext.Add("		-b, --bare		Don't include date in automatic name");
+							helptext.Add("	-gn=, --game-name=	Filter by game name");
+							helptext.Add("	-ngn=, --not-game=	Filter by not game name");
+							helptext.Add("	-rn=, --rom-name=	Filter by rom name");
+							helptext.Add("	-nrn=, --not-rom=	Filter by not rom name");
+							helptext.Add("	-rt=, --rom-type=	Filter by rom type");
+							helptext.Add("	-nrt=, --not-type=	Filter by not rom type");
+							helptext.Add("	-sgt=, --greater=	Filter by size >=");
+							helptext.Add("	-slt=, --less=		Filter by size <=");
+							helptext.Add("	-seq=, --equal=		Filter by size ==");
+							helptext.Add("	-crc=, --crc=		Filter by CRC hash");
+							helptext.Add("	-ncrc=, --not-crc=	Filter by not CRC hash");
+							helptext.Add("	-md5=, --md5=		Filter by MD5 hash");
+							helptext.Add("	-nmd5=, --not-md5=	Filter by not MD5 hash");
+							helptext.Add("	-sha1=, --sha1=		Filter by SHA-1 hash");
+							helptext.Add("	-nsha1=, --not-sha1=	Filter by not SHA-1 hash");
+							helptext.Add("	-is=, --status=		Include only items with a given status");
+								helptext.Add("		Supported values are:");
+									helptext.Add("		  None, Good, BadDump, Nodump, Verified");
+							helptext.Add("	-nis=, --not-status=	Exclude items with a given status");
+								helptext.Add("		Supported values are:");
+									helptext.Add("		  None, Good, BadDump, Nodump, Verified");
+							helptext.Add("	-gt=, --game-type=	Include only games with a given type");
+								helptext.Add("		Supported values are:");
+									helptext.Add("		  None, Bios, Device, Mechanical");
+							helptext.Add("	-ngt=, --not-gtype=	Exclude only games with a given type");
+								helptext.Add("		Supported values are:");
+									helptext.Add("		  None, Bios, Device, Mechanical");
+							helptext.Add("	-run, --runnable	Include only items that are marked runnable");
+							helptext.Add("	-nrun, --not-run	Include only items that are marked unrunnable");
+							helptext.Add("	-out=			Output directory (overridden by --inplace)");
+							helptext.Add("	-mt={4}			Amount of threads to use (-1 unlimted)");
+						}
 
 					// Verify
-					helptext.Add("  -ve, --verify		Verify a folder against DATs");
-						helptext.Add("	-dat=			Input DAT to verify against");
-						helptext.Add("	-t=, --temp=		Set the temporary directory to use");
-						helptext.Add("	-ho, --hash-only	Check files by hash only");
-						helptext.Add("	-qs, --quick		Enable quick scanning of archives");
-						helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
+					if (subset == null || subset == "ve" || subset == "verify")
+					{
+						helptext.Add("  -ve, --verify		Verify a folder against DATs");
+							helptext.Add("	-dat=			Input DAT to verify against");
+							helptext.Add("	-t=, --temp=		Set the temporary directory to use");
+							helptext.Add("	-ho, --hash-only	Check files by hash only");
+							helptext.Add("	-qs, --quick		Enable quick scanning of archives");
+							helptext.Add("	-h=, --header=		Set a header skipper to use, blank means all");
+					}
 
-					// Additional Notes
-					helptext.Add("");
-					helptext.Add("Archive scanning levels:");
-						helptext.Add("  0	Hash archive and contents");
-						helptext.Add("  1	Only hash contents");
-						helptext.Add("  2	Only hash archive");
+					// Additional notes
+					if (subset == null || subset == "ss" || subset == "sort")
+					{
+						helptext.Add("");
+						helptext.Add("Archive scanning levels:");
+							helptext.Add("  0	Hash archive and contents");
+							helptext.Add("  1	Only hash contents");
+							helptext.Add("  2	Only hash archive");
+					}
 
-					helptext.Add("");
-					helptext.Add("Filter parameters game name, rom name, CRC, MD5, SHA-1 can");
-						helptext.Add("do partial matches using asterisks as follows (case insensitive):");
-						helptext.Add("	*00 means ends with '00'");
-						helptext.Add("	00* means starts with '00'");
-						helptext.Add("	*00* means contains '00'");
-						helptext.Add("	00 means exactly equals '00'");
+					if (subset == null || subset == "ud" || subset == "update")
+					{
+						helptext.Add("");
+						helptext.Add("Filter parameters game name, rom name, CRC, MD5, SHA-1 can");
+							helptext.Add("do partial matches using asterisks as follows (case insensitive):");
+							helptext.Add("	*00 means ends with '00'");
+							helptext.Add("	00* means starts with '00'");
+							helptext.Add("	*00* means contains '00'");
+							helptext.Add("	00 means exactly equals '00'");
 
-					helptext.Add("");
-					helptext.Add("Filter parameters for size can use postfixes for inputs:");
-					helptext.Add("	e.g. 8kb => 8000 or 8kib => 8192");
+						helptext.Add("");
+						helptext.Add("Filter parameters for size can use postfixes for inputs:");
+						helptext.Add("	e.g. 8kb => 8000 or 8kib => 8192");
+						}
 
 					helptext.Add("");
 					helptext.Add("Most of the filter parameters allow for multiple inputs:");