Feature Idea (one per thread):
In a custom type, it would be super helpful if the tabs at the top were in a vertical, left-hand side bar.
Issue that it solves:
When there are many tabs, the text is fully viewable for each tab title. As it is, only a portion of the tab text shows making it difficult to know what the tab title is. We have a UI Text custom type where we add all the text in for UI components, etc, so we have lots of tabs to help us organize the text fields.