In that thread I had given the OP explicit directions to start moving the cursor in the desired direction, then let go of the mouse and type the offset distance without a sign. Letting go of the mouse indicates that you don’t move the cursor anywhere such as to the Measurements box. This was two days before your post. If it means that much to you to have the check mark, ask the OP to change it. Or come on by and I’ll pour you a beer.
Ian, someday I plan to cross the pond. Maybe you can buy me a beer then. 