Choose quadrant for printing A6 on A4

[printer_brad]

Hi,

I want to print shipping labels. The labels themselves are A6, and I have A4 size paper which is made up of 4× A6 stickers.

Printing the first label is easy, it prints on the top left sticker of the A4 page, but I don't know how to make it print on the other 3 quadrants? I'm usually only printing 1 label at a time so need to be able to select which quadrant to print on (depending on which stickers are left on the A4 page).

Thanks in advance!