[Feature request] Stochastic Texturing

[ElsAr4e]

It would be great if you have the option for a feature like "Stochastic Texturing" for selected areas (just selected regions of the terrain) or all the terrain or just specific textures. Ideally an opt-in setting that allows you to choose like "only material 1 / material 1,2" or "selected area" or "all the terrain".

Example:
Stochastic Texturing

Or if it is already implemented how can you enable this feature?

Ideally for both Godot 3.x and Godot 4.x