Glynnis,
It sounds like you want a quick fix, however, if you definitely need this functionality now, it can be accomplished using a project parameter.
Go to Settings-Project Parameters and add a project parameter named "Temporary," using type "Yes/No" and select the categories "Views" and "Drawing Sheets." Make sure it is an Instance parameter.
Once the parameter is created, you can now go into the properties of any view or sheet and you will see a checkbox next to a value called "Temporary". Simply check the box in views that are TEMP views.
To filter these values in the browser, go to Settings-Browser Organization and click New. Then group as required, but go to the Filter tab and Filter by: Temporary - Equal to: Yes. The browser will now only show the views that are 'Temporary'.
Sorry to be so verbose, but I just wanted to make sure you knew there was a solution.