Hello,
I added a custom domain to my configuration but was under the impression that I could use this domain for multiple instances. So that each subdomain would be its own server. Is this possible to do?
Looks like once you use the domain you now need another one for the next server.
Each domain can only be assigned to a single Tunnel or Gateway. You can create sub domains from here: https://playit.gg/account/details/domains/list.
The only way to have a single domain point to multiple things is with Gateways which requires Playit Premium. This would let you have a HTTPs and Minecraft Java tunnel use the game domain and it would route the connection based on the protocol traffic (web goes to HTTPs tunnel and Minecraft goes to Minecraft tunnel).