Quick submixes/mixer groups

[unfa]

The idea is to allow the user select multiple mixer strips and reroute them all to a newly created channel with one click.

When you select a strip (or a few) a new button (Create submix) should appear. Clicking it would create a new channel, name it "Submix", send it to Master. All selected channels should be rerouted to the new channel, so they don't send to Master, but to the Submix.

If the user deletes the submix and the channels have no output, should be automatically send to Master again. See also: #1219

The extension of this idea is to create mixer groups. Each group would have it's own submix master and would be collapsable, so just the master strip is visible (with a open button to un-collapse the group showing all it's channels).

The submix master would be placed before the group's contained strips (being a header of the group).

What do you think?

[Reaper10]

I like this