AG Instrument, MULTICHANNEL by default

[apohl79]

Add customizable defaults (probably via settings menu) for enabling all channels by default vs the current behavior.

Discussed in https://github.com/apohl79/audiogridder/discussions/1142

^{Originally posted by Dieguitarro January 19, 2023} Hello everyone, sorry for the English (google translate)

First of all I want to thank Andreas Pohl for such a great plugin, I've been using it for a couple of months now and it's great...

I only have one question right now.

Is there a way to make AG Instrument load multical by default? .... every time I open a project I have to activate all of them and it's exhausting, also for each time the channels are activated the plugin is loaded again and I would like to avoid that.

I appreciate any help or guidance you can give me.