The fun thing about Polygonia is that you can create very nice designs with just one or two lines. There are also plenty of times when your design starts out simple, but gets more intricate as you add a line here and a line there, then maybe a few more lines to highlight some part of the pattern. After a while you have lot of little lines all crowded together, and you wish you had an easier way to edit your design without zooming in and out.
Now you can swap the design view with the editor! Just click on the double-arrow icon in the new editor toolbar.