I have A LOT of random maps that I'd like to delete, but selecting them all and pressing 'delete' only gets rid of one map. Does anyone know how to delete multiple maps at a time in Pro...or perhaps there is a folder somewhere on my drive from which I can delete them?
yup... this is pretty well what it says if you can't select more than one at a time
To remove a map or layout permanently from a project, right-click the item on the Project pane and click Delete.
From some of the digging I've done, map files are built into the project. There is no way to delete the maps unless one creates a new project or really wants to dig into the binary data. In arcmap, there was a tool called "mxd doctor" that could scan map documents and delete corrupted/bad files. Perhaps they will create a 'project doctor' for ArcPro.