Brush Category Creation

[Sqzbx.Garry]

Hey there, I'm new to affinity photo. Was looking around on the forum, youtube wasn't much help either. I figured out how to create a brush, and edit brushes that are already installed. But how do I create a new category (e.g. Basic, Acrylics, Dry Metal, etc.) inside the brushes menu for my new brushes? or how do I compile a brush pack?

[R C-R]

Click the 'hamburger' menu at the top right of the brushes panel. (It looks like 4 horizontal lines.) The first item in that menu is "Create New Category."