View should provide Preview Handlers for DWG, RFA, 3DM, DXF, IFC, OBJ, FBX... not just DGN.

A lot of time is wasted if thumbnails are not available. Looking for the relavant files to open takes a lot more time than opening to get a better view, comparing etc.

Having to install other apps or preview applets for all the associated formats is time consuming and bulky.