Hi Phill,
So is there a easy way to print the 8 a4's in Qi ?
Yes there is, QU can do most things associated with printing!
Go to Print Properties, select Custom and then place a dot in Poster and enter the number of pages across and pages down: see 1st screen shot. Click yes to confirm poster mode is required when that pops up.
Place the image in the queue, see second screen shot of the page preview, note the red 4x2 indication. You can adjust the crop in the normal way in the page editor.
The last screen shot is from the printer preview.
Terry