Script for combinding different versions of PCBs

[greenscreenflicker]

Hello,
i have PCBs that have the same size, share a lot of components, but different layout. To save setup costs when ordering at the PCB House I want to combine the two into one panel.
One row should be at the top and multiplied n times (PCB1),
One row should be at the bottom and multiplied n times (PCB2).
I struggle how to do that with python scripts. Is there any tutorial?

Michael