Weight Mapping- Changing brush side in the ART Deformation menu?

I was wondering if there is a way to scale the brush area down for more precised weight mapping using the Deformation Setup in the ART script?

I know I can change it with Maya’s defaulted Painting tool, But I’d have to switch to using that instead of ARTs.

I just use the hotkey, which is holding down ‘b’ while dragging your mouse. You’ll see the brush size change.
I’ll get an actual slider added for the UI though!