I would love to see this feature in Designer:
When printing or exporting - ability to set up N copies to print/export on a page.
I prepare a business card.
I would like to print 15 business cards / A4 page.
So I set up 5 rows and 3 columns, select whether business cards will resize, define gaps, cutting marks...
I used Corel Draw years ago and it is a feature I LOVED. Very simple and automatic. When I change the design, it is so simply to print it again!
With Designer, I must mess with artboards, multiple copies, arrange... And when I change anything, I must copy again...