Is there any way to list/filter OT classes? If not, it would be cool if you could just type @classname like regular glyphs, and an entry in smart filters would be great.
An extra column in list view could be useful too. Right now, the only way to interact with OT classes is through the features panel, which is not much of course.
Also, how do I delete a custom list filter, the remove entry is grayed out?