Your Borad shape doesn't fit with Panelize tool, it is fit with panelize by manually.

Do you have an example of how to do this with stamp holes?

@mplacona
https://docs.easyeda.com/en/PCB/Panelize/index.html#Panelize-by-Manually

after panelizing，add stamp hole on the board outline, just like the editor panelize function.

I don 't get it, sorry! The link above tells me how to copy an item,. bug not how to add it to a panel and then how to add the stamp holes. Is there a stamp hole option anywhere? Is it not possible to just modify a generated panel by EasyEDA by adding more holes?

@mplacona, @UserSupport,

I think support is trying to say that you can manually add more stamp holes of the same size as those already placed?

Oh is that what they mean? Yeah, I think I may be able to do that!

@andyfierman do you know if there's a way to visualise in 3D what the board looks like after adding more stamp holes?

Thanks

@mplacona,

Sorry but I haven't used the 3D features enough to know.

You could add the stamp holes to the original before panelization and that should work in the 3D viewer but I don't  know if you can visualise a  whole panelized board.

In my opinion if you submitted the board as is to JLC they would treat the x'ed out areas as board cutouts. They will leave the panel edges and stamped hole areas. Just my experience, but if that isn't what you want you'll need to do the manual method.