Welcome back to BMS...glad you like the app! One thing that comes to mind is make sure that in the settings (little cog wheel icon by library name) you allow any process (by not having any assigned) or include it in the allowed process list. I'm not sure this is the issue though, as you say the built in ones are working. Make sure the command window shows that the voice command is being activated/recognized, and make sure the outputs are defined properly. If you can detail a specific question, I'll be glad to help either here or in the BMS forum.
Regards, Foxster