Gallery is a dynamic Gallery Extra for MODx Revolution. It allows you to quickly and easily put up galleries of images, sort them, tag them, and display them in a myriad of ways in the front-end of your site.
See the official documentation here: http://rtfm.modx.com/display/addon/Gallery
Install via Package Management.
New in Gallery 1.2.0-rc2
New in 1.2.0