Hotwo change the roles of a node

Hi all,

I recently have extended my cluster with several nodes and now i want to change the roles of existing nodes to also provide as etcd-node or controlplane. How can i do that withoud removing and readding the whole node?

I searched up and down the forum and the github-issues, but no luck. I have to admit it is hard to believe that no one had this issue before and it makes me doubt myself for not finding such an obvious option.

Thanks in advance for your help.