Optional: Create a land using the command /lands create <name>.
Optional: Enter the selection mode using the command /lands selection or use the selection tool provided by the server. Select both corners of the area you want to claim using left and right click. Use the command /lands claim to claim the area. If no selection is made, it will claim the chunk you're standing on. If no land has been created before, it will automatically create a land with your name.
Open the lands menu to manage your land using the command /lands menu.
Execute the command /lands edit <land> to use the commands for a different land.
All following commands will be executed for this land.