Thread:ADour/@comment-24951012-20141109153240/@comment-4651179-20141109170644

When you go to the edit mode of a page, you'll see in the right a grey bar with a small arrow pointing to the left. Click it, and new options will expand. One of the sections of the expanded bar says "Categories" (if it's not expanded, click it to expand it). In "Categories" there will be a text box (which says "Add category...") and below it a list of the categories already on the page. You click on the text box, write the category, click enter, then publish the edit and done!