In Slate Material Editor, I like to get materials off of selected objects.
However, 'Get All scene Materials' is right below the 'Get selected material' button.
When working on a BIG scene, it can get particularly annoying when I misclick and have to wait for a long time before a couple hundred materials are collected.
Maybe a prompt would be a good idea.
something like "your scene contains a lot of materials. getting all materials may take a long time. continue?"
could save me hours... 😄