I.e, in preferred types editor, add new type -> UnityEngine. All the subclasses (UI, etc) are at the very bottom of the list. I think these should be sorted to the top of the list.
Also, in the prefs menu for graphs, can there be a shortcut to the preferred types editor? Usually that’s when you would run into ‘Oh, I need to add this’, so this just makes it more convenient.
The first suggestion is a bit harder than it looks 🙂 but I will take a look at it.
As for the 2nd one, I just did this and I also added the menu item to open the window in the “Add Variable” menu of the blackboard.