brett_cbg написавSo to clarify I shouldn't be using multiple attachments on a slot if I'm going to be using a skin since theres no way for that to translate.
This is not clear. 🙂 There is no problem with using multiple attachments under a slot. If you use attachments without a skin placeholder, then your attachments won't change based on which skin is visible.
Skin placeholders are conceptual, but you can think of them as attachments whose actual attachment comes from the visible skin, or none if no skin is visible. The skin placeholders are hidden or shown and the actual attachment hidden or shown comes from the skin.
In my example above, the slot has 4 skin placeholders. Each skin placeholder has either an attachment or nothing for each skin. To do frame-by-frame animation, you hide or show the skin placeholders over time in sequence.