Hi Cyndi;
You set it up under new, then select new document and go from there. InDesign has a very good help menu on top and an online help menu as well. I take it you have looked at your manual? InDesign is an extremely powerful page layout program and has lots of features, depending on your version. I have used Quark and InDesign and both have their advantages. But InDesign with other adobe products allows me to map for color profiling throughout the work flow. Photoshop, Illustrator, InDesign and Acrobat. We do our newspaper in InDesign.
www.thecherokeean.com
Try the help menu if you do not have the manual.