Hi @glom,
First of all, you should check that fvwm has been compiled with rplay support and that rplay is installed. For that, run:
fvwm-config --supports-rplay && echo $?
If that prints out 0, then that means you should get rplay sound support with FvwmEvent. That said, I should warn you that I will be removing rplay support in FVWM3 as this library is no longer maintained.
In your second example, you have:
*FvwmEvent: iconify "iconify test"
That would print “iconify test” to STDERR, which on some systems in ~/.xsession-errors, but also sometimes this is now logged via systemd, so you should check. It will depend on which (if any) display manager you mighth be using.
In your third example…
+ I Pick Exec exec xmessage $[desk.n]
Pick forces a window context by getting you to choose, which isn’t what you want. Arguably, you can use:
+ I Exec exec xmessage $[whatever]
as the window context is already assured.
There’s nothing fundamentally wrong with your examples, so I am sure they’re working, but perhaps if you told me what you’re trying to do, I can be more specific?
Thanks,
Thomas