I think you can only change the default in design view>>then change the defaultview property and then re-open the form again in form view.
BE WARNED! This looks really bad. I've tried it. You can try the Echo command at the begin and end of your procedure to clean up the look, but this can cause problems if an error occurs prior to the Echo true statement your application will disappear until you close and open the database again.
Echo false
code...
Echo true