I get what you mean now.
I don't think you can.
Your zone stamp doesn't actually draw the zone itself.
You can request information from it but can't alter its properties.
You can certainly draw a fill as part of your zone stamp that will cover the zone but I am not sure how you would get the co-ordinates of the zone perimeter.
You might need an add-on to get that info.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11