copy A to B on a plugin

[apohl79]

Discussed in https://github.com/apohl79/audiogridder/discussions/1026

^{Originally posted by emerymastering September 13, 2022} Hello Alex,

I hope you doing good!

I was wondering if implementing a copy of setting from A to B and back is on your todo list?:)

Would be very helpful!

Cheers Denis