[Closed] UVW Unwrap switch to second UV channel ??

Hi,
I seem to be having trouble to switch to the second UV channel (without moving the first channel into the second.)

The
$.modifiers[#unwrap_uvw].unwrap.setMapChannel 2
only uses the MOVE action (NOT the ABANDON which I need).

I’ve looked into this thread:
http://tech-artists.org/forum/showthread.php?4923-MaxScript-modifiers-unwrap_uvw-unwrap-setMapChannel-2
but the problem is that if I use the Reset function I have to deal with the UIAccessors and that causes issues in my script. (>> MAXScript Rollout Handler Exception: – Unknown system exception <<)

Is there any other way of just switching to the second UV channel without this unnecessary additional commands?

Thanks