Implement a way of separating a rsi into smaller parts

[SweptWasTaken]

Use case: the lockers rsi looks like this: It would be really good if you had the ability of organizing it like this:

[Peptide90]

+1 for this great feature, saves editing the meta.json after the fact.

In essence it would be neat to highlight a bunch of things in a .dmi > right click > export selected as rsi or something similar.