Gridline defaults

Hi

I wish to set default gridlines. I generally use A3 paper size, but print to A4, so wish to set up gridlines to match print area for my printer. Have tried tools/customize/gridlines. No go.

Have also tried tools/customize/gridlines/user preset. Looks fine when I set it, but when I exit dialog box, I get gridlines in the middle of my A3 page - about A4 size.


Thanks