Hi Mike,
how can I put more than one layout on that page
By more than one layout, do you mean a different configuration of sizes or repeats of the same layout with different images and possibly text?
I'm not very familiar with roll printing.
If it's the same layout template with different images, I know with single sheet printing, if you continue to load images after the first page is full, a new page is opened with the same template so you could load different images. For this to work well it would depend on how sets of smaller pages can be nested on the roll, a driver function I assume - what page nesting features re available?
Fred's idea would work and allow you to have different images and sizes.
You could do one large template with the 24x36 page size and several cards incorporated in that . Cutting guide lines could be tricky.
Terry.