Hello, this topic might be a bit old (more than 1 year ago) but still, today those questions are really interesting and really helpfull to develop a good workflow and challenge PS for digital painting :
It woulb be great and if it has been done feel free to tell me where i can find those features please. Plus the possibility to recreate custom brushes libraries composed with different brushes picked up from differents brushes folders already imported in Affinity Photo. I really want to do the transition, this software is beautiful but painting without being able to use those shortcuts and interrupting yourself clicking, scrolling, searching into the brushes menu between 2 strokes preventing you to go fullscreen just ruin the workflow and is the last thing makes me still use and prefer Photoshop to paint.
Indeed, keep going you're doing great. Hope this problem/feature will be solved.