I contacted product support and they did not have a solution for me and suggested i post a suggestion here.
I flip through single page drawing PDFs in WINDOWS PREVIEWING PANE many times a day to find an engineering drawing I need. The problem is that the default is set to fit to page width which slows down the process of flipping through drawings. I have to hit down arrow, then click over to fit to page each time. It would be great if Bluebeam could force their WINDOWS PREVIEWING engine to default to "fit to page." Also, there doesn't appear to be any zoom features in the WINDOWS PREVIEW PANE. I had thought there used to be zoom options in earlier versions but maybe I'm thinking of adobe previewer?