I would not suggest trying to change the token in the daemon as you’ll run into issues with the panel. However, to change the root folder for a server execute the following steps:
Turn off Houston
Open the config for your specific server at <houston_dir>/config/servers/<token>.json
Add a root property to the JSON object (Making sure to follow the JSON guidelines)
Set this to be the absolute path of where you want the server foler to be (e.g.: "root": "/home/houston_servers/<token>",)
Manually move the files from <houston_dir>/servers/<token>/ to your selected directory
Start Houston back up.
We’re planning on adding a config option in the global config that stores all servers in a different location though!