I would like to suggest a feature, to duplicate a selection cause its a great way to make multiple textures on a surface and is more flexible to create something and we could really make easier to move a layer surface pressing just Alt (like ALTbutton on Photoshop), because I feel having the power to manipulate easier the surfaces, layers and the selections is missing a lot in Paintstorm.
(I really love this program and can't wait for more updates <3)