Very nice, Joel.
I love to see people take one of my macros, and enhance it for their own use.
That's the main reason I post macros -- to give others a good starting point and example.
Well, you could check to see if the Clipboard has changed AFTER the COPY in the macro.
If no change, show a notification instructing the user to first select the Actions to put into the Group.
To check the clipboard, see:
MACRO: [CB] How to Detect When Clipboard Has Changes [Example]