[SOLVED] How to place FvwmIconMan-Taskbar on 2nd XineramaSls Screen with Resolution Screen

I got this working with code like this:

XineramaSlsSize 2x1
XineramaSls On
XineramaPrimaryScreen 0
Xinerama On

*FvwmIconMan: NumManagers 2
*FvwmIconMan: Resolution screen
*FvwmIconMan: ButtonGeometry  1100x0
*FvwmIconMan: 1 ManagerGeometry 1x1+0-0@0
*FvwmIconMan: 2 ManagerGeometry 1x1+0-0@1

One confusing issue was that the screen name starts at 0, but the icon manager name starts at 1.