Hello,
I have already tried to create a restricted content by doing the way you described it, but when I save the page, the [row] [column], etc., are added at the beginning and at the end, and then the [/ restricted] stops act as the closure of the restricted content, and is now shown as normal text.
There could be a more correct method of doing it that I had not found, but will this be the only way to do it?
Best Regards