Post: #2

I don't remember exactly how the bandageself internal macro works, but if it works using an specific extended macro like openspellbook/opendoor/etc you can check ARGN1 on trigger @UserExtCmd (return 1 will block the action). Or if the macro call directly the healing skill, you can use @PreStart -> return 1 on healing skill (since you're using an custom healing engine instead the default healing skill, there's no problem if you disable the default healing action)