Import cluster 'state' from rancher docker container into rancher helm deployment

To install an on-premise bare-metal cluster, I’ve provisioned a cluster with the Rancher web-interface.
This all works fine, but now I want to relaunch Rancher itself on that cluster.
Following all the HA guides using Helm and external load-balancers this also works (less-fine, but it works).

After connecting to the new Rancher web interface I’m happily greeted with an ‘imported’ cluster (the cluster on which Rancher is running).

Perfect! But… I can’t change anything on the imported cluster!
Is their any way to migrate the ‘state’ from the old single instance docker container, to the new kubernetes deployment Rancher instance?