Is it possible to only edit certain terrain material like grass, sand etc

Hey there, I was wondering if it’s possible to only edit a certain terrain material. I am creating a landscape using the roblox terrain and i want to only grow rocks for a mountain, without changing the grass around this. Is this possible? Is there a plugin or some handy trick I can use?

Thank you,
sam

Not sure if this is what you mean, but you could use the “Add” terrain tool. Using it, you choose what material you want to add.

Well I meant like only growing or painting over an already existing part of terrain without affection other terrain materials but it’s fine now, thank you

@Tjieko there is a tool in Terrain Editor that allows you to replace certain Materials with another material