I have created a custom format, which I have called "simple format".

Unfortunately, the sheet size is 11 inches by 8.5 inches. Here where I live we use the A4 format, which is 297mm by 210mm.

I managed to change the sheet size manually in the sheet format properties to meet these conditions, and then I saved the sheet format.

The problem is, when I open another drawing and change the sheet format to my "simple format", it will still be 11 inches by 8.5 inches!

This means that some of my sheet format is outside the actual page.

How can I include a sheet size in my custom format?