Working with Include/Exclude lists can be super slow with large scenes. There were some improvement (like the '+' button) but it's not proving useful the way it's implemented, at least not for Render Elements. Here are some suggestions:
- The '+' button, when activated, waits for the user to pick an object. This is unfortunately useless when you want to add 100 objects at the same time. It should be the other way around: first you select the objects, then press the button and it adds the selection to the list.
- Add a '-' button to remove current selection from the list. Button behavior should be the same as above, select > press button > objects get removed from the list.
- Add an 'X' button to clear the list. Currently there's no way to clear with a single action without opening the List, selecting all objects and removing them, this should really be improved.
- Please add an indication (either a color on the 'List...' button or as a tooltip) so it's clear whether the list is empty or not. Currently you have to open the List to check.