Combine commands; ID based

[Milliw]

Hi there!

First: Thanks for your work!

My questions:

1. Is it possible to send multiple commands with one call?
   I would like to toggle-mute multiple sources for instance.
   Tried to write them down in one line but only runs the first command.

2. Are there any IDs that could be used instead of the source names?
   When changing names one would have to change the command, too.

Kind regards =)