Export different layers


What is the best way to export different layers for proofing?
I have a few layers and need to test them separately.

Also, any good proofing tool you can recommend?


Do you have those extra layers in only a few glyphs or in a lot?

Not sure I understood the question. I have 3 layers, and inside each layer, I have a few layers. But I would like to export only the main 3 layers. Thanks!

My question was if that is like this in a lot glyphs. Then we would need an automated solution.
You can make any layer the master layer from the context menu in the layer panel. Then you change the font family name, export and change to to next layer …