I have 240 prefabs to scatter, but polybrush seems to break

Hello everyone!

I'm creating a huge city for which I've made 240 different building prefabs, basically made out of 32 different model prefabs. Now I need to scatter those prefabs randomly with a height, width and depth and rotation randomness variation.

I thought the prefab scatter tool provided by the polybrush package was perfect for the job, but as soon as I add more than 50 prefabs to the prefab palette, the prefabs in the palette view start to flicker and glitch all over the place. The variation settings also seem to be uniquely saved for each prefab, but I'd like to have 1 set of settings for all prefabs, although I'm not sure that's possible.

The issues mentioned above makes me think that polybrush wasn't made for this amount of prefabs. Am I right here, or am I missing something? If that's correct, are there any alternatives for me? What are my options?

Thanks in advance.