[shrek]

Eh, I don't care for a particular integration or anything myself but can see the utility. The mwm-utils toolbox doesn't look like yours in screenshots as mine shows the minimize and option buttons. Gonna try building that on IRIx anyways for shits and giggles just to see.

Session manager doesn't work properly on BSD presumably, it complains it can't find the PID of the session which is probably a linuxism or config issue.

Try taking a look at the Xresources I shared under EMWM-dist/emwm-conf/Xresources. They're essential if you want the desktop to look right.

The session manager does work under FreeBSD and it's not tied to Linux in any way. It complains if xmsm isn't running but you can still use it outside of EMWM. The session manager is a different application and to get it working you should launch it with the xmsession script which will run EMWM, the Toolbox and merge Xresources.