Use case or problem
Whenever a file is created with a / or \, it currently gives a warning that the filename is invalid, and will not create it
Proposed solution
Whenever either slash is present in a filename, it should automatically suggest to place the file inside of the directory (if said directory exists) or create the folder structure written automatically. It ideally would function similarly to the quick switcher, where holding a modifier key can influence how the file is handled.