creating guidelines across pages that have different orientation

Hello all. I've been using CorelDRAW! since 1995 and am stumped:
I have a design for a flyer. One side is PORTRAIT and the other is LANDSCAPE.
When I introduce GUIDELINES is when I come to a halt. They are not outlining the page in the second layout as they are in the first layout (due to the different page orientation).
How can I fix this?