I'm totally confused by enpoints, expression maps, and other midi commands

Thank you – what should the “natural” switch be defined to do? I guess I can compare that with other expression maps such as one of the Halion maps. I very much appreciate that you took the time to look into this!

It should presumably define whatever is the appropriate key switch for the regular “arco” sound.

Thank you, Daniel. I’ll be working on this today to see what I can do to improve things. Thank you for your help!