Upgrading HC models and importing Dashboards

With the advent of Flexsim HC5 Dashboards are no longer saved in separate files but stored with in the model.
So if I want to upgrade and old model to HC5 I simply open it and a popup will tell me that the model is being updated. So far so good. But how can I now import my old dashboards to complete the updated model?

As part of the model upgrade process, any open dashboards will be converted to the new format. So simply save your old model in version 4 with the dashboards open and then open the model in version 5.