Works perfectly !!

Also, there were a number of things that I had to change, not in the code but in one of the lists (font, etc.), I found that if I want to change something in the document itself , and keep the button work properly , the way that worked for me (which includes what you suggested) is:
Developers>
Restrict Edit>
Stop Protection>
Design Mode>
Change What You Want>
Click Design Mode Again>
Enable "Restrict Edit"

Check with the button that everything is fine.

I would like to thank you for the tremendous help and patience.
You made a number of blue-collar workers , very happy !