WarpIN elements allowing REXX macros in their attributes and/or block:
Tag:
Attributes:
Block:
BODY
GROUP
HEAD
MSG
X
NEXTBUTTON
X
X
PAGE
X
PCK
X
X
README
X
REXX
TITLE
X
TEXT
X
VARPROMPT
X
WARPIN
All the places not marked with an X wouldn't make sense.