I work for an engineering company. Many of us use the Space Navigator 3D mouse for our modeling programs. I understand Unity is originally a game developer engine. But the support of the 3d mouse is terrible. Why hasn't Unity taken its support seriously? After a 2nd monitor, the 3rd mouse is the upgrade we pick before better processor, ram etc. Few of the other engineers and drafters don't want to touch Unity if a basic tool is not going to be supported. Please Unity, if your serious about supporting AEC, support the use of a 3d mouse.