Hey,
currently when you have a master layer and an Alternate layer (presumably similar for other special layer types) and you drag the Alternate layer onto the master to swap the two, what happens is:
- the shapes swap correctly
- the now master layer remains marked as Alternate layer, even though it now is a master; I think it should lose the special layer attributes and styling in the layer list
- the now alternate layer is just a layer copy and has lost the Alternate layer settings; I think it should properly swap and receive the same special layer settings the Alternate layer had before the swap
Nothing crazy, but it would be a lot more intuitive that way.
Cheers,
Johannes