There is.
I haven’t gotten around to updating my plugin for it- mostly because those tools are all “beta” and I think they are about to go Bye Bye having been in beta for years.
Theoretically, using my plugin you can change the system to use the correct HISM for the procedural stuff and call it a day.
There are a couple nodes that would need fixing and what not, but its mostly similar/the same.
As far as the procedural tools - they can be great but come with their own set of challenges when dealing in world comp.
And, most importantly you usually end up using both tools in a game. Because the proc. Is great, but when you need a tree where you want a tree the only way is to place it by hand. Either as a mesh or as a foliage item.
I prefer to use the foliage tool to keep everything where it has to be… call it paranoia. A mesh would do just the same 90% of the time.
As far as the rest. Yes.
Definitely do not try to implement your own HISM system. Use what’s there to reap the optimization benefits and fuatrum culling that’s built into the existing things.
Procedural and foliage tool both.