Sorry, just to clarify for my own records and anyone else reading,
- I went to the TRACK TRIG EDIT menu by hitting FUNCTION + BANK while Grid Recording was on
- Scrolled through the PATTERN PAGES to find the hidden recorder trig
- Held down the TRIG key while tapping both the RECORD buttons and the MIDI button for good measure, until the REC. TRIG was removed from the display