If you have a Dante card in the S7000, then yes you can use “Tielines” to route things around to the DM0.
Under the TieLine Tabs in “Routing”
In the S7000 Input Routing Tab
S7000 Dante Card Inputs –> GigaAce Card
In the DM0 Input Routing Tab
GigaAce Card –> DM0 destinations
In the DM0 Output Routing Tab
DM0 –> GigaAce Card
In the S7000 Output Routing Tab
GigaAce Card –> S7000 Dante Card Outputs
etc, etc, etc,
The only “downside” to this method is that it adds slightly more latency because signals have to be routed through the GigaAce card. If you routed Dante In/Out at each device, it would have slightly less latency. However the GigaAce routing speed is extremely fast and will not cause issues. Just be aware of the difference and account for it if necessary.