Using a selection tool allow Admin's to delete chunks. By default if player entities found in a chunk the chunk will not be deleted. This can be forced by holding the SHIFT key while selecting an area. In all cases you will not be able to delete a chunk if a player is present.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
If you have a problem please send me a message via Discord @ billbo99#8142 or post it here https://discord.gg/jRPB2SZBUk ... I don't check here that much for issues. DM is your best bet.