Split this topic, Dan, so others looking for similar answers might find it
There’s a (incomplete) tutorial here.
It shows how use the dialog to manually set mappings, then shows a series of “virtual mapping techniques” to try yourself
The idea is to open a file, play with it –using the MIDI monitor to check…
(no need to store and overwrite any preset)
…then adapt a given technique for your needs to append to one of your existing stored presets
In addition to that, have a look down the list of features that @Giedrius has built into 1.15; scan down the Changelog to see just how many pipes have improved.
Once you’ve got your head a bit around all these goodies you might see ways to improve your existing presets