Adding categories to multiple photos

Hello !

I’d like to add categories to multiple pictures at once, and not one by one.
Is there a way to do it?

Should be great for event galleries like weddings with filters for “ceremony”, “drink”, “diner”, party”,… But adding tags to hundreds of pictures one by one is a bit too long ^^

Thanks in advance !

The page I need help with: [log in to see the link]