imon with learning mce remote

Hey!

I bought a new mce remote that can learn ir signals.

I am aware that I cant power on my HTPC with a mce remote this is why I cloned the power on key from the imon_pad remote to the new mce remote and it works.
But now I am unable to power off the system because the power off button is obviously sending an unknown keypress. Unfortunately irw or ir-keytable -t does not show any output for that very key.
I know that now can just assign this key to another button but before doing this I want to know if I can maybe load a second table with ir-keytable?
According to the help it should append code table entries if you dont clear them before with ir-keytable -c but at least in my case this does not work, what means the old table(imon_pad) is cleared after loading the new one (imon_mce).
So is there a way to avoid this or is there even a better way to handle this?


Thanks!