If you aren't already aware of it, the AUGI Forums are some of the best resources for people with questions on 'how to' with Revit (or any Autodesk platform for that matter). The AUGI Forums are user controlled, meaning other users will answer your questions. You have probably stumbled across it in the past as it usually shows up in any search results from Google or Bing. If you want to post you must make a free user account, but it's completely free to browse!