I believe there was a provision for that already in the editor concept.
In context of this feature of scale which I love to rant about, maybe a solid LOD system for both distance and scale would also be a medium-term feature needed for the 3D stages? It would surely be a comparatively hard to implement one…
I believe HyperbolicHadrion has thought a lot on LOD systems. For plants also, for example.
But yes, being able to, for example, turn any organism that is too small in comparison to you into just “a cloud” or cullling them entirely would be very helpful.