How can I associate a pcb omported from PADS with a schematic imported from PADS?

Hello,

I am trying to migrate some projects from PADS9.2 to EE7.9.

Here is what I have managed to do so far:

- import of the schematic in DxDesigner,

- import of the design data in Expedition PCB,

- creation of the padstacks in the library,

- association of the symbols from the schematic with the cell from the pcb data.

I have some issues with the last step which is how to associate the schematic with the pcb.

Do you know how I should proceed or where I could look to get some help?

Thank you,

Anthony