Update Tags on Multiple Images

Is there a way to update the tags on multiple images all ready part of an album? Or do I have to do them 1 at time? If this is a stupid question, I apologize, but I can not find the solution anywhere.


Example.

I have 10 images in album 1:

I want to up date the tags on image 1, 2, 3, 4, 6, and 7 to Tag1, Tag2, Tag3. Is there a way to update all of the images at the same time, or do I have to do each one by one, which would take for ever.

Thanks