With Spring 19, High Volume platform events are generally available. Now I want to convert my existing standard volume event into a high volume event.

I tried editing the event object in Setup, it did not give me an option to change the event type.

Secondly, I tried editing the object XML and converting StandardVolume into HighVolume and then deploying via Metadata API(Force.com migration tool), the deployment succeeds without any error, but still, the event type is Standard Volume.

Can we convert Standard Volume event into High Volume Event?