Using the Data Panel tool
The Data Panel tool, which you can toggle on and off by selecting Data in the View menu or clicking on the corresponding icon in the icon tray, is very useful to work with data on an analysis page. It gives you an overview of all the columns in all the tables currently loaded in the analysis file and the relationships between those tables. If you click and drag a column onto any visualization, you will get a set of context-sensitive options, such as Color by that column in the visualization.
