When customizing the form for creating a worker, whether an employee or contractor, it is not possible to add a field that has been created, meaning a custom field. This prevents us from making other customizations that use the custom field we would like to add to the form when creating a worker. I opened a support ticket with the TrackingID#2311160050005870, and I was asked to make this suggestion because the issue we reported in the ticket is a limitation of the system itself, not an error.