Clear render to viewport

DraagonStorm

In my script I render to viewport to check how something looks after a change. But I can not figure out how to get the viewport back to developement. If I close the script and click on the viewport it goes back, but  I don't want to exit out of the script and then restart.

YudinEd

Maybe this  (from documentation v4.x) -example (Clear Render)? Look closer to the bottom :)  http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/scripting/api_reference/samples/rendering/render_to_viewport/start