Mark,
The XP-80 has a record mode called "Pattern".
I think this is what you are talking about.
To get to "Pattern" mode:
*Select patch you want to record. If drums, press "RHYTHM" mode button.
1. Press "Seqencer"
2. Press "Pattern" button, which is right above the "Track 2" button in the middle of the keyboard.
3. Record your "pattern"
*note* I find it handy to use the "Loop" (F5) when recording drums.
NEXT STEP: ASSIGNING PATTERN TO TRACK
*This procedure is outlined on page 114 of your manual.
I would just be repeating what the manual says, so I'll stop here. If you still have questions, let me know.
Good luck.