Brush asset proportions

When scattering assets in the brush, we should be able to repeat assets to establish proportions between them. For instance I want 5 grass for 1 flower.
So, I should be able to insert 5 equal grass and 1 flower.
This woul allow me to save a preset like this instead of having to first do the grass and after do the flowers.

maybe we can specify a height range for every single asset in a brush setting

All those options are suggested here aswell, make sure to upvote so they know how much we need this