Below is a representation of a simple 3 line script that I use in FS2020. I am trying to help someone implement it in AAO, but I have never used AAO (classic case of the blind leading the blind! 🙂).  I would appreciate if someone with AAO experience would post how and where this simple script would be implemented in AAO so it could be activated by a button or key. 
 Thanks very much!

1  (>L:AP_PITCH_REF, Bool)   ; put a 1 into the Lvar AP_PITCH_REF
 pause about 100 millisecs
0  (>L:AP_PITCH_REF, Bool)  ; put a 0 into the Lvar AP_PITCH_REF 

Edited March 11, 20251 yr by ark

1  (>L:AP_PITCH_REF, Bool) (SPLIT:100) 0  (>L:AP_PITCH_REF, Bool)

or just assign the first to key down and the other to key up (=without using any script)?