[ovirt-users] Changing the Cluster Compatibility Version in hyperconverged environment

Hi! I'm sorry if it is a noob question but it is very important for me. We are researching oVirt in our company and hope to use existing environment where there's no SAN/NAS solution. Just a bunch of servers. We were able to set up a hyperconverged installation with oVirt 4.4 a while ago and now I'm resuming research and trying to upgrade it to 4.5. I was able to upgrade HE and Hosts. What's left is to upgrade Cluster Compatibility Version from 4.5 to 4.7. I don't seem to find a way to do it as when I try to Edit cluster I get this error: "Cluster Compatibility Version". Upgrade Guide on https://www.ovirt.org/documentation/upgrade_guide/ does not have entries for hyperconverged set up. So I don't know where to look for information on this topic. Is it possible to achieve my goal at all? Can "frozen" Cluster Compatibility Version cause problems in the long run? I can rebuild the whole setup now when it is still being reviewed and planed. But if we start using it actively it won't be possible. I'm afraid that this could be a show-stopper in the long run. Thanks in advance!