This feature will be helpful for Login lobbies (My server would need this as it would be useful for new players as I could add a Hologram for the /login command instead of chat message).

You spawn in a Small login lobby and you will be Teleported to the Main lobby after successful register/login

I tried using EssentialsX spawn but It changes the /spawn or /lobby command to the Login lobby.

Login lobby:

Main Lobby: