looks like I'll have to create a new manual page sizes for each print, as they is no option within the driver to conserve paper (not that i can see!)
Thankyou for your help!
In case you are unaware, you can save your pages in Qimage easily. have everything ready to print. Page size, print size, printer profile, driver settings, everything....
Then click Save in the File menu. Select the "P" button for printer. Name the setup: 30 x 50, and SAVE.
Make another with page size 44 x 90, and Save... as many as you like, and more of the same with different paper if you change papers.
When ready to print a 44 x90, (for example) simply click File, Recall, P button, and select the named 44 x 90 and Open.
Ready to print, all setting as they were when you made the save.
Fred