Empty playlist from external HDD

Hello kodi community,

I’d like to add a smart playlist from my external hdd. I added a rule that contain a folder from my external HDD, (=>/storage/Maxwell/64ER68E6GEG/videos . )
I know that i have to add a new video source to add a scraper too but i don’t know why the HDD is already in the video source (?) and i can’t add a specific folder from my HDD because when i browse to add a new video source the external HDD doesn’t appear. :/

The playlist is empty obviously, Can you think of anything that might help, please?