If you would like to create a new plan view of your model, you could duplicate an existing plan view, but this will bring with it all of its views properties. This could be acceptable for your requirements, but I always like to start fresh and then apply the view parameters I require.
The only trick is that when I go to the View ribbon, select the Plan Views tool, and then the Floor Plan tool, the resulting Dialogue box, usually does not show any of the levels, because they are already in use.
To show all of the available levels, just un-check the ‘Do not duplicate existing views’. This will bring up the available list of Levels. The select the Level and create the new view.