These routines will run, almost all with no customization at all.

ADDCMDS	attaches your local command table to the in-storage copy of ISPCMDS.  Your site doesn't implement 'USERCMDS'?   Not a problem... with ADDCMDS.
ALIST	displays all (or selected) allocated DDNames and allows you to drop selected datasets from allocation or concatenation, edit, browse, view...
ARRANGE	demonstrates a technique for adding rows to an ISPF table in random order and maintaining that order over time.
ATTACH	This session customizer is designed to work in anyone's installation without modification.  How?  All the 'mods' are in an external dataset where you specify which files are to be enhanced or trimmed and which commands are to be executed as part of your logon processing.  Customization: the instructions for adjusting the environment are expected to be found in [userid].ISPF.PROFILE(START) but if the dataset, member, or contents are missing ATTACH will still run -- although it will do nothing.
BLOX	block-letter writer; modeled on IEFSD095.
COMBINE	combines -n- files even if the DCBs are different.
COMMANDS	view and execute commands in a Command Table.
DUP	written by Chris Lewis based on my "CLONE".  This lets you build a 2nd dataset based on another and fill it with the original's contents.  This is so good I no longer use my own software.
FCCMDUPD	insert a command to a user's command table under program control
FIRSTIME	does a specified task only the first time (this day, week, month, year) it's called and skips it otherwise.
FLTTBL	converts any ISPF table to a flat-file
FTPERR	analyzes FTP return codes.
GENCARD	build control cards from parms
GETGDG	finds the n-th generation of a GDG
HSMLIST	makes management of HSM backups and migrated datasets much easier.  You are prompted for a catalog level, then all the HSM material for that catalog level are presented for selection.  Delete, Recall, and Recover functions are supported.
JOBCARDS	builds a 4-line stack of ISPF jobcard statements.  May need some local customization.
JSPLIT	breaks JCL into one-phrase-per-line.
LA	performs a "LISTA ST" into the queue.  Great for when you want to know the dataset names allocated to some particular DD and don't want to write the code for it.
LCOMM	inserts a line-comment right-justified for PL/I code.
LDOW	calculates the date of the nth-anyday.  Feed it '3TU200306' and it will return the ISOdate of the 3rd Tuesday of June 2003.
LISTCSUM	extracts the output of an IDCAMS LISTCAT operation to an easily-parseable form.  Built originally as an adjunct for improvements to Jim Connelley's "VC" that can be found on file 726 on the CBTTape site
LOADKEYS	Sets default values for 24 PFKeys and several 'scroll' parameters.   Modify to your preferred settings and re-establish your favorite PFKey settings with just a few keystrokes.
MEMBERS	writes the directory of a PDS into the queue.  Handles ALIASes (or not, you decide).
NEWALIAS	an easy way to create a dataset-alias.
PDSCOPYD	copies members between PO datasets when the DCBs are incompatible.  Uses EXECIO for data-movement, and LM facilities to replicate the statistics so the two members look like exact duplicates, right down to the time-of-last-update.
POST	puts a message onto your ISPF log file.  This is used by several of the routines but it's not actually necessary; you could stub it out if you wish.
PRINTME	prints the current dataset/member on a local printer.  Customization: As presented, PRINTME uses PRINTDS to actually move the text to the printer.  If your site does not use PRINTDS this will have to be adjusted and will possibly affect other parameters as well.  The technique, nevertheless, should be adaptable.
PROFVARS	displays the contents of application profiles from ISPPROF.  This is based heavily on Chris Lewis' PROFVARS but extends it in both directions by allowing the user to select multiple profiles from a list and adding a deeper level of detail for those profile variables that seem to have gotten off their leash.
QPWEXP	Reports on when a user's password will expire.   Works for ACF2 and RACF.
REALIAS	assigns member-aliases automatically for REXXSKEL-based code.
REPGEN	shamelessly stolen from Jim MacKean of Vancouver BC (thank you, Jim).  This takes a mock-up of a report and creates PL/I or COBOL declares for each line.
RSTTBL	restore an ISPF table flattened by FLTTBL.
SEIZE	an alternative to (ISPF Edit) CREATE :-)   A panel pops up to ask where you want the seizure stored.  The advantage of SEIZE is that the member-statistics on the new copy will be identical to the original.
SHOWME	Dislay 'members-by-DDName'.  For concatenated PDSs, shows all members and allows Edit, View, etc.
SPACERPT	builds a report showing DASD usage for specified groups of datasets.
SQRT	a callable square-root routine in REXX.  Although I designed this entirely independently, I'm sure that it's somebody-or-other's algorithm.  If you recognize it, let me know and I'll give credit where it's due. (Update: Robin Ryerse claims this as his.   Since it was so long ago, that could well be the case.)
SQUASH	submits a background IEBCOPY to compress the current dataset.   Since the job runs in the TSO background, you can "SQUASH" the current dataset immediately on getting a S/x37 abend to instantly recover sufficient space to accomplish the "SAVE".
STRSORT	sorts a string of words either ascending or descending.  Used only as a subroutine.
TBCOPY	makes a copy of an ISPF table with modifications.   This routine is actually a pro-forma code block that provides the framework for doing the required table modifications.
TBLGEN	TBCREATE using the special Table Master Table from [TBLMSTR].
TBLMSTR	Create/Maintain a Table Master Table.  This is a specific-instance of a generalized table-maintenance routine; it does a particular task but it's also a great tutorial on how to handle 'table maintenance'.
VCX	based heavily on (OK... stolen from) Jim Conneley's VC, this generates the IDCAMS DELETE/DEFINE statements that would have been used to create this KSDS, ESDS, RRDS, GDG, etc.

Some of these are pretty complex as edit macros go.  Hopefully they are commented well enough to be understood and maintained.

COMPSTAT	adds ISPF statistics to a saved PL/I compiler listing.  Requires SHORTPG.
DC	'Dot Command'.   David Visage built the original of this in CLIST (!);   I recast it into REXX and added a few features.   Put a dot-command on a line with a 'DSN=' and crank DC to have it do that function on that dataset.   What a cool idea!
DEADCODE	finds portions of REXX code that are not called.
ELEMLEN	a required subroutine for PLIPOS, included here to make it easy to acquire it.
FIXSTATS	For those odd situations where you want the member-stats to reflect something other than 'this user, right now'...
JFORM	aligns JCL for ease-of-reading.  New and improved...  Values for where-to-put-this-text are kept in the ISPF profile.   If there aren't any, you get prompted to adjust the default values to ones more to your taste.   Multiple formatting profiles may be kept for various purposes.   Start as "jform ((setup" whenever you wish to alter the values.
PLILBLS	finds all the PROC statements (and their ENDs) and all labels and the CALLs and GOTOs that reference them.   Helpful for seeing the overall flow of a program.   Works on PL/I source and compiler listings.   Requires STRSORT and SEGMENT.
PLIMSGS	operates on a compiler listing by copying the diagnostic messages to just before the referenced statement.  Instead of bouncing back and forth between the source listing and the Diagnostic Messages sections, skip from one message to the next by "L NEXT SPECIAL".   Also pick up PLIMSGO (Optimizer) and/or PLIMSGE (Enterprise).
PLIMSGE	The working code for Enterprise PL/I listings.
PLIMSGO	The working code for Optimizer PL/I listings.
PLIPOS	Are you frustrated by structure declares whose commentary neglects any mention of which data-columns are used by each element?  This ISPF edit macro will insert an appropriate comment onto each line identifying the start and end position.  (For LRECL>999 only the start position is shown.)  (Make sure you also take ELEMLEN).
PLIXREF	operates on a compiler listing.  Every CALL or GOTO is annotated with the statement number to which it refers.  Every label or PROCEDURE statement is annotated with the statement number(s) that reference it.  PLIXREF has lately become a driver for two routines: PLIXREFO (for the Optimizing Compiler) and PLIXREFE (for the Enterprise Compiler).  Don't forget to pick up these two required subroutines when you grab PLIXREF.
PLIXREFE	The working code for Enterprise PL/I listings.
PLIXREFO	The working code for Optimizer PL/I listings.
QIO	operates on PL/I source and compiler listings.  Pops out all the FILE DCLs and summarizes them in NOTELINEs at the top into INPUT, OUTPUT, UPDATE, VARIABLE, and ANY (files that don't specify INPUT, OUTPUT, or UPDATE in the DCL).
SEGMENT	assigns labels to particular lines in a saved PL/I compiler listing.  This enables you to (e.g.) go directly to a certain portion of the listing via a simple LOCATE.  Requires COMPSTAT.
SELMATCH	Matches ')SEL' and ')ENDSEL' by placing the SEL-condition on the ENDSEL-statement.  This makes it easy to match them visually and is good documentation as well.
SETREFS	creates backward-references in JCL (DSN=*.IEBCOPY.SYSUT2...).
SHORTPG	The Enterprise PL/I Compiler adds a useless blank line at the bottom of every page of compiler output.  When the default page-length is set just right, printing such a document causes an unnecessary page-eject after nearly every page resulting in one blank page for each printed page (double your normal paper usage).  SHORTPG removes these blank lines.
SHOWFLOW	pops all the CALLs in a REXX routine and all the labels to which they refer.  If you always end your subroutines with a comment that names the subroutine, you'll see that, too.
STRCHRT	Create an indented structure report for COBOL source.   There are three (3) ISPF edit macros here, so you must partition this single item into three pieces.   It has been many years since I looked at or used these macros; they worked the last time I tried them.   Corrections appreciated. HELP-text is embedded.

The routines here deserve their own category because they are extraordinary in their capabilities and, consequently, in their complexity.  Not for the faint-of-heart if maintenance is contemplated, but they should work as-is...

FCXREF	does a member-cross-reference between [n] partitioned datasets.  3 listing formats; member-name masking; name-range selection.
RUNDATA	keeps persistent data for processes where the data can be used by multiple users and/or across multiple sites.  Makes heavy use of extension variables in ISPF tables.   If you are responsible for REXX software that must be re-customized every time a fresh copy is downloaded, RUNDATA is an excellent tool for auto-customizing that software, and you may discover other uses for it as well.
TBLOOK	examines and displays any ISPF table.  Any ISPF table?   Yes, any table.  NEW!   Now allows you to arrange and print selected columns.