Remove default Viewport from default sheet?

Hi all,

I just downloaded DraftSight.  I have been an Autocad user, but never attempted to use Viewports before...

When I double click on the center of a new sheet in a drawing, Viewport 2 activates- which is nearly the size of the whole sheet.  That Viewport is not modifiable or removable.  The problem is that I then add my own Viewports and my Model Space picture is getting doubled up.  Viewport 2 and my newly created Viewport 3 (created to Fit) overlap.  I can't seem to turn the default Viewport off?

It seems as though this is just a misunderstanding on my part, but I have exhausted my references and the Help with the program and many internet pages; Viewport isn't working the way I am seeing it explained here and on other Autocad sites.

This is a new drawing created in DraftSight.

Thanks in advance for your advice!