You're right Doug, i didn't see Jimi is running logic 8, so MS 1 i guess.
Anyway, after several tries i found that also in MS 2 it is possible to change image for each set or patch, although it is a quite complex task .
The only way seems to be:
- in layout mode inserting and sizing a "background" object
- in edit mode (set or patch level) clicking on the background box
- in layout mode clicking again on the background box and then on the image box in the screen control inspector, so that it becomes kinda highlighted
- back to edit mode - WOW - a screen control inspector is available on bottom, where an image can be selected.
IMHO this is a little "bug" that could be easily solved by programmers