I have an extensive brush collection and I would like to see folders for brushsets like what we have in Photoshop. When importing many brushsets into PS we get folders like General purpose, textures, shading/rendering and so on.
When importing the Adobe megapack we get this:

Also the font size of the brushsets in Artstudio should be dynamic depending on how long the name is. Now we can't read the full names of the brushsets. Greg Rutkowski Traditional reads "Greg Rutkowsk..."
And final, making different sets of favorite presets would be helpful. For example if I want favorite presets for general sketching and one for textures and so on.