Hello! You can only tag project photos if you have labeled the photo under the "Spaces" category.

I am trying to figure out how to do this as well. All my 'Spaces' were categorized as 'Landscape' per the drop down list - I don't see any other method of labelling the photos under the "Spaces" category (?) Can you explain further? Thank you.

Hi Apple Tree! For your particular photos, just click Add Image Tag. It's located on the bottom right of each photo. Make sure you are not in the Edit Projects function either. Just click on your photos and the option to Add Image Tag should be there.