Temp pkx file is not generated until user left-clicks and moves.
Prevents drag and drop of blank pokemon from slots previously held by dragged pokemon.
Response for left-click actions moved into left-click event.
= acts as a 'modify if' filter
! acts as a 'do not modify if' filter
. acts as a 'set property to' to value
!HeldItem=0
^ do not modify if held item is zero
=HeldItem=5
^ only modify if held item is index 5
.Species=7
^ set species to 7
!SID=666
.TID=666
^ set TID to 666 if SID is not 666
.TID=666
!SID=666
^ set TID to 666 if SID is not 666 (filtering can be after property
settings)
Run one 'batch modify' script at a time.