Thanks you two! Putting an effort to push towards playtesting for Episode 1 soon, albeit still waiting for word from Larian regarding Instance painting and when a patch will come to fix that. TL;DR is if you paint bushes/grass etc on a map, intending to use this map as a level template to be added to a main level later, the instances will not follow. I'd rather wait for a patch to fix this rather than paint land 4x size of Fort Joy with instances twice.
Meanwhile, I've been working on new areas within Fort Joy itself, hidden away with stuff to explore of which I won't say, and should also help with making a new playthrough with the mod feel like a new experience