It would be nice to have a Navigation window in ArtStudio Pro Mac OS.
Also, a color usage history, so I can go back and select the color I used earlier. Right now, I have created a color swatch palette for my painting I am drawing, so I can save the colors there. But if I want to use a swatch color from another palette, I have to change color palettes.
And lastly, Clip layers, so I can be non-destructive painting to the original layer.