I didn't realize many ever used AutoCAD itself to open 'any' drawing files or drawing sets directly...so perhaps I missed the value of this as a 'tip' on its own, but may I offer a tip outside of AC that allows this tip to be used effectively? Several file managing apps are available that exceed by far the usefulness of Windows-own file manager to locate and organize your project files. Since all of our project drawings MUST be saved and edited from our file server, from within the appropriate trade folder or xref folder of the project # directory: We use the third-party file manager "Total Commander" to create and access our project directory. When working on multiple projects residing on company file server(s), it is much more efficient to use Total Commander to browse directly to the intended drawing .dwg file or drawing set .dst file, and double-click to open.