@WhoKnewKnows , thank you for your reply, but I think you get my question wrong.
For hatched line, either 45 deg or 90 deg, like this image:
![](https://www.multi-circuit-boards.eu/fileadmin/img/03_Design-Hilfe/flexible%20leiterplatten/leiterplatte_masseflaeche_rastern.jpg)
it is OK and already applied and AD supports it with no extra effort, done.
My question is for Heaxagonal filling, like this image:
![](https://www.altium.com/resources/images/pilar/img-4.9.jpg)