I'm hoping that this is simple, but I can't figure it out. I have two trees, I am in both of my trees. I uploaded pictures to one of my trees, and tagged myself in the picture. But that picture is only associated with one tree, not both. I can't figure out how to tag it for both trees, and the only way I can associate a photo directly from the tree is to upload it. I'm confused.
There is no need to upload a photo twice in order to add tags for each tree. You can tag the same picture twice (or more), one time for each tree.
Please note that when you tag a picture on the family site and you start typing the name of the person, below the name the person will appear the tree he/she belongs to. This can be used as a guide to know to which tree the photo is being tagged.
Hope this clarifies. Please do not hesitate to contact us directly to support@myheritage.com in case of further comments or questions.
What I did was to download the picture from the tree it is on, then upload it to the other tree. There might be a better way somehow, but I didn't care enough to look and it worked anyway.