first of all, great job!
Secondly, In JS runtime you can change any slot skins in runtime by creating new custom skin or even replacing the single slot.
( https://github.com/pixijs/spine/blob/master/examples/change_skin.md )
There is a way to do that in construct? (except from use the js sdk directly)
Case of use: a character with different skin and I would like to mix-and-match slots