Feedback PolyBrush , need clear all , load all button for brush loadout

For Scattering,

It is very tedious and takes long time to be able to load all the elements from palette into brush loadout by individually adding them through clicking the check boxes. Also the same goes for removing them from the loadout.

Please! Please add button for :

"Clear All" for brush loadout.
"Load All" for brush loadout from the currently selected palette.

Or give us ability to save the brush loadout so we can swap the selections and paint them.

Right now, this tool can be so much better in practice but falls short on actual practical usability.

Mass selecting and then modifying placement setting does not work, copy paste placement setting also does not work.