A very small improvement for printing multiple images

[Мечтун]

Hi,
in File->Print window, on Layout page there is setup for printing multiple images on one sheet of paper (Picture collection), but i have a problem with printing multiple photos on one sheet, because there isn't some sizes i need. Can you add an option to set a user defined size. For example i need to print 30x40 mm photos on one sheet, but there is only 35x45 mm setup.
Sorry for my bad english.

[GeBu]

Yes, it should be very useful.
Update: Now, I found Page layout: "Thubnails" with definition of rows, columns and spacing and it is enough for me.
It is very useful for creation four invitation cards per A4 page from picture of poster.

[GeBu]

For this reason, it should be very good to add option "Repet" to print one picture more times per page.

[vmsoft77]

The function of printing of a few copies of image is very needed on one sheet in the real size (DPI).
Sorry for bad English is machine translation.

[oops66]

+1 ... for an user defined custom size.