Allow a saveable Spout sender name for Magic's Spout output

[Terry Payman]

At present I use an external hardware mixer to crossfade/mix the outputs of two simultaneous Magic projects, but I want to experiment with using a Spout-receiving app as a more versatile alternative.

For live performance I usually have two, three or more Magic instances running simultaneously, often opening a project in one while crossfading between two others.

Within the mixer app it would be very helpful if I could identify each Magic Spout stream by a project name, making it obvious which project's output I was dealing with.

EDIT: A suffix to "Magic Main Sender" would still be useful.