-read.me documentation for  == Perf*Star ==   November 17, 1989:

Perfect Writer allows radical alterations to it's command set. As an editor
more powerful than Wordstar, it seemed worthwhile to me some three years ago
to 'hack' that command set into a rough semblance of the Wordstar command set.
In this, I was partially successful, especially in causing PW to mimic the
basic editing commands of Wordstar, and building additional commands around
the "Wordstar diamond" concept.

I recently went back and updated the command set to more closely mimic
Wordstar in some respects. 

Files you must have already to do conversion:
PW.SWP, PW.SYM, PWBIND.COM, PW.HLP [these are on your master PW disk]

files included:
FUNCTS.TXT [the file necessary for the conversion]
PWLKWS24.DOC [explains what this is all about, and how to do the conversion]
PW.HLP [a custom help overlay for Perf*Star - use AFTER configuring Perf*Star]
PWCFIG.COM [yet another homemade version; this one's the best I've seen]
PWCFIG.DOC [explains PWCFIG program's operation]
PWDIR120.ASM [public domain 'hack' to enable PW to display disk files]
PRINT.DOC [offers a few quick notes on printing with PW]
-READ.ME [this document you're reading]