There is no "complete" the design button. How will a user leave the designer after finishing the design? There is no "Exit" button in the designer.
Just reinstall the plugin again, that is fixed now.
I started a new topic. Sorry. I'm going to try reinstall.
Even after reinstallation, the "Done" button is not visible!
Is it possible that a patched version has not yet been uploaded on codecanyon?
yes, problem solved. I had to clear cash memory!