Revit provides information on keynotes via the keynote legend and on revisions in the form of the revision schedule. However, the process of finding and reviewing keynotes and revision clouds within their respective views is a very labor intensive task. Using Ideate Explorer you can track down any inappropriate keynote or revision instances.
To audit the keynotes within a project:
TIP: To determine which type of Keynotes have been used, select all Keynotes and then use Ideate Query to review the property called "Key Source" as shown.
The same process used to audit Keynotes can also be applied to Revision Clouds. It's a great way to ensure that clouds are assigned to the correct sequence. Bear in mind that Revision Cloud visibility is often impacted by the settings within the Revision dialog.