Q: Problem using Deleting a Photo Album

Photos is not iPhoto - it is a new progrma with its own learning curve and new work flows - do not expect the same work flows as iPhoto - start by reading the help file  --  https://help.apple.com/photos/mac/1.2/?lang=en#/pht035bc2c35

When in an album to delete photos hold down eh command key and press delete - this moves teh photos to the recently deleted album for 30 days or until you delete from there

LN

Deleting Photos from a Photos 2.0 Library

1 - regardless of where you are in the library, i.e. Moments, Collections, albums, smart albums or projects, select the photo(s) you want to delete and use the key combination of Command+Delete to move the photos to the Recently Deleted smart album.

2 - click on the Recently Deleted smart albums in the sidebar.

NOTE 1:  If you're using Photos 1.2 or earlier use the File ➙ Show Recently Deleted menu option.

3 - in the Recently Deleted album you can opt to let the photo automatically delete after the 30 day waiting period is up, delete them immediately or restore them to the library.

NOTE 2: deleting a photo from an album, slideshow, book, etc., with the Delete key only deletes the photo from that item.  There is no key combination that will delete a photo from a project and move it directly to the Recently Deleted smart album.

NOTE 3: deleting a photo from a Moment or Collection (the Photos window) or the All Photos window deletes ALL occurences of that photo in the library.

right click on the album and select delete album

LN