Blitz2, Swdtech2, Morph2, etc...

Okaaay. Looking at this a little more thoroughly, it looks like you don't really need to deal with Leap at all. Basically, current map is stored in 16-bit $1F64. Just run a CMP against that for whatever map(s) you want the command to be run on. It's much less complicated than trying to use the Leap functionality, which is a combination of 'particular locations on world map' + 'particular monster formations'.