Altium V15: How do I copy PCB layout across multiple device sheet instances

[Psi]

In altium v15, If I manually route all the parts in one device sheet/region on the PCB, how do I then duplicate this routing to all the other identical device sheets/regions on the pcb.  Ideally so I can update the master one and it auto updates all the copies.

Note, this is for Alitum 15, I know the modern version has more options for doing this.

[ajb]

Looks like AD15 has rooms, so if you enable room generation in the project settings for the multi instance sheet you should then be able to use Design > Rooms > Copy Room Format to replicate placement and routing from one instance to all of the others.  Actually the 15.1 docs don't appear to mention auto creation of rooms, so you might need to create them manually?

https://www.altium.com/documentation/altium-designer/pcb-room?version=15.1

[Psi]

Thanks.  yes, it does create rooms i just delete them and turn them off because they always cause issues trying to move parts around.

Will experiment with them, thanks.