Board Thread:Questions and Answers/@comment-31834028-20170124125811/@comment-6078077-20170124160728

Do you mean seperate pages or just normal galleries? Eitherway, all you have to add to the page (usually at the "Gallery" section)

If you use the VisualEditor Click this button and then type in the name of your picture or a key word. Select the picture(s) you want and choose "apply changes"