How to have a shared folder for all media

Currently I can see pictures, music, and movies in their separate respective folders. I need to keep switching between these folders to view/play these files.
Is it possible to create a common media folder where I can put music, picture, and movie files and OSMC/kodi should show/play them based on their file extension.

If you use the file manager in settings it will play all media types from there. This is often not ideal as it will only play one file at a time with no option to play an entire folder or selection.