RKE Templates Migration

Hi guys,

we started with Rancher 2 as there were no RKE Templates and are managing several Custom Clusters.
Now with the possibility to consolodate the specifications with RKE Tempaltes, it would be nice to only specify one template and manage (nearly) all of our Clusters with a RKE Templates and its revisions.

There is the possibilty to migrate a Custom Cluster to a RKE Tempalte (= save the current settings as a new RKE Template)

But we would like to have 1 (or 2) RKE Templates and apply them to our existing clusters. Is there a way we did not see yet for apply a RKE Template to an existing Custom Cluster? Or are we forced to recreate all of our Clusters with a prior created RKE Template?