A great feature that would be especially useful for 3D Printing would be to have a seperate Mesh Enviroment. With the rise of 3D Printing and 3D scanning it would be nice if Fusion could replace programs like Rhino, and Meshlab. In this enviroment there would be tools like Mesh simplifacation, Mesh reduction, Mesh patching, and other useful commands. Another useful application would be the ability to fix extremely difficult Manifold issues. If this Enviroment was made it would put Fusion in a really good spot for the 3D Printing industry.