Export river network to MSHE as standalone

Hello -
I have developed in MH River a river network with cross sections. Boundaries on the upper ends are closed and I have set the outflow level of the main trunk at 1m.
In MSHE, I want to insert the network and runoff water via OL flow and possibly SZ flow to the rivers.
How is this accomplished without first running a MH simulation and then bringing the simulation into MSHE?

Any suggestions are appreciated.

Thank you for your post.
Since this seems to be a support enquiry we suggest that you contact our support team at MIKE@dhigroup.com and we will be happy to follow up on this matter.
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DHI Admin