Automatically apply a tag to the entire contents of an album.
BatchTag is a module for Gallery 3 which will allow gallery users to automatically apply a tag to the entire contents of an album. BatchTag works by creating an additional input box in the album sidebar where tags may be entered (multiple tags should be seperated by a comma). The tags will then automatically be assigned to every non-album in that album. BatchTag requires that the Tag module be installed and active in order to function properly.
This module may be downloaded from the Gallery forums here.
To install, extract the "batchtag" folder from the zip file into your Gallery 3 modules folder. Afterwards log into your Gallery web site as an administrator and activate the module in the Admin -> Modules menu.
After installing & activating the module, the batch tag option can be found in the side bar of your gallery after you log in.