Not really.
Make a bluerpint actor, add a variable of the foliage type.
Drag it in the level and drop select foliage.
If you cant find the foliage you picked the wrong variable type.
Once you find the correct one, you can then select the foliage and perform almost any add/remove operarions as you see fit.
Inatances work by index, so adding them in is trivial. Removing a spcific one requires a collider and hit information.