Properly import Mac Photos's albums in Plex

Hi,
I am sorry to bother you but I couldn't find the answer to my question on the forum.
I have created a Photo library in Plex but each photo is now an album and I cannot find my Photos album.
Is there a way I should create this library - e.g. pointing to a specific sub-folder of the Photos folder - so that it works properly?
Many thanks for your help and happy new year to you all!
Xophe