How to duplicate (clone) already done grid

Hello dear team! I've read tutorial and also was on YouTube but unfortunately was't able to find answer.

So I've made and sett all the settings of one post grid (according to a "teg").

Now I need one more greed but with another "tag", and all other settings should stay as they are.

Easiest way to do so, is to clone (or duplicate) one existing grid and then just change the "tag" in copied one.

I'd like to do it, but can't find how.

Thank you in advance for your reply!!! Your product is great!