I never had any answer from Roco! I managed to move the pages item for item as suggested by Alan:
"On my IPad I can move each accessory one at a time to a blank page by touching and holding the item so it can be repositioned. Then, still keeping it under my finger, move it towards the edge of the screen, say the left side, when the edge is reached the next screen slides across. So, you can basically slide each item between screens and reposition where you want them to be. It's a bit of a fiddle on and only one at a time can be moved. However it's probably quicker than setting them up again on a new screen."
Thanks to Alan - have a nice summer -- we haven't seen much of it here in Denmark!
Lars