Is it possible swap a master layer with brace layer in more than one glyphs at once?
I have 3 masters and each master has a brace layer.
Are you sure you mean brace layer as that is not switching. If you mean you have one in each glyph, you need another master. If you mean you need a bracket layer in each glyph, how could that be done in bulk. You need to define the layers somewhere?
I’ll try to make an screencast of I need to do.