Method to edit the structure of a list.
https://api.wbsrvc.com/List/EditStructure/
POST
| user_key Required |
User Key of the user who initiates the call. Type: string |
| list_id Required |
ID of the list. Type: integer |
| action Required |
Action to perform on the field. Type: string - possible value 'add', 'delete' |
| field Required |
Name of the field. Type: string |
| type Required |
Type of the field. Type: string - possible value 'text', 'integer', 'datetime' |
| client_id Optional |
Client ID of the client in which the list is located. Type: integer |