I'd created a demo panel by configurator which can put a list of your favorite brush and switch them quickly.
Left is an image widget, picture is clip from screen shot of brush manager.
Right is a script button with script code like these:
var V1 = new ActionDescriptor(); var V2 = new ActionReference(); V2.putName(charIDToTypeID("Brsh"), "Soft Round"); V1.putReference(charIDToTypeID("null"), V2); executeAction(charIDToTypeID("slct"), V1, DialogModes.NO);
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