You know when you install lots of mods and you want to prune them (remove unwanted parts) because you need only some of their parts, but then you mess something up because you delete wrong files and your mod doesn't work, your game crashes, etc.
That is especially frustrating when the part's file name(s) aren't recognizable and you end up deleting something you don't want. A very common issue.
I propose either an external program, or a plugin that enables you to delete parts from the game itself (now, I know literal application of this might not work because they're loaded, but it could at least mark them or hide them from the part list.)
Anyway, something could be done to facilitate pruning which is essential when you mod your game and don't want to end up with enormous GameData folder.
Same should work for stock parts. Some of them I never ever use and they just clog up the working area.
Maybe someone proposed this earlier, I don't really know.