Hi Bolbou1,
since the appearance of HALion 6 / HALion Sonic 3 , if not earlier, HALion Sonic 3 should be your choice when playing live in a band. The “Multi Chain” feature known from HALion Sonic 2 gives you the possibility to step thru multi-programs via a defined MIDI-controller and/or via a program-change (option page).
Now with HALion 6 you can even create your own vstsound files with your own samples, that can be loaded into HALion Sonic 3 for the use on stage.
best regards
Gerrit Junge