Please allow me to view/download/delete ONLY the photos that I have in Google Photos that use up my Google Drive storage space, vs those that do NOT use up storage space.
More Details: I had previously used Google+ Photo backup to backup my photos, at the original resolution. So, I have 14GB of photo backups eating away at my Google Drive storage limit.
I have recently set up the new Photos backup using "High Res" so I have unlimited uploads, and therefore don't need those 14GB anymore.
I am trying to figure out if there is an EASY way to transfer these photos from Google+ Backup to Google Photos so I can then delete the 14GB on Google Drive. I see ways for me to show the Google Drive photos on Google Photos, or I can go to Photos thru Google+, but I can't figure out a way to transfer them to Google Photos backup. To complicate matters, I have already used the Google Photos Desktop app to add almost 200GB of historic photos to my Google Photos, so I cant just "download and reupload" everything.
I tried talking to the Google Drive support since these are eating away at my Google Drive storage, but they directed me to Google+ help. Google+ forum support directed me Google Photos support
1) How do I identify the photos using up my Google Drive storage quoto that were backed up via Google Plus Backup?
2) How do I download JUST those photos?
3) How do I delete JUST those photos from Google+ Photos to free up my Google Drive storage space?