The central worker configuration can be managed through the WranglerView from the supervisor.
Show the configuration dialog
Select one or more workers in the Workers layout, <right-click> to show the menu, and select Configure on Supervisor.
Make any desired changes
The worker configuration UI will be shown. Any values that you edit will have their labels turn green, as in the worker_description field below.
Saving the changes will automatically publish them to the workers
Clicking OK will save the changes to the central worker configuration, at which time the supervisor will then automatically instruct all workers to re-request their configuration from the supervisor. No supervisor or worker restart is necessary. Any workers not currently running will receive the changes when they next start up.