Keyboard ALT + g to toggle grid overlay
Orbit, pan and zoom more quickly in Revit 2016 R2. With the Draw Visible Elements Only option, Revit works only on displaying the visible elements of a view. Gain significantly improved navigation speed with more complex files and views in which regeneration of a significant amount of content is suppressed.
The progressive view updates and occlusion culling performance happen at the GPU level instead of at the CPU level, helping Revit take better advantage of available hardware to help improve performance and user productivity.