You might need to change your namespace back to Duplicate_Sheet or whatever matches your addin file.
And you have to be in a sheet view when you run it. (for some reason I needed a sheet with a title block. A blank sheet didn't work.)
Otherwise, what error do u get and when do u get it?
And you have to be in a sheet view when you run it. (for some reason I needed a sheet with a title block. A blank sheet didn't work.)
Otherwise, what error do u get and when do u get it?