Is it possible to subtract volume from the Blocking Volume?

I m trying to use Brush Type in the Details tab, but it doesn’t affect anything. I would expect it to work the same way with Geometry Brushes, but unfortunately, it didn’t. What are your suggestions?

I don’t think so. But if you want a strange shaped blocking volume, you could always just make a mesh and set it to hidden.

ok thank you for your replying

No worries. I do see the option to use it as a subtractive brush, but it doesn’t work, eh?

Yes it doesnt work