My project has multiple skins and sometimes we have to deal with skins with many custom styles. Editing them in the editor is difficult, for instance, I cannot delete one style that is not the last one without deleting the ones after it.

Would there be a way to edit a file that represents this skin?

Could I edit a skin file if I use Text in the Asset Serialization Mode (Unity Pro)?

If not, is there something in the Unity Store to help me better edit skins?