code: public boolean shouldDisplay(String operationId, PMSecurityUser user) {
          if (operationId == null) {
              return false;
          }
          //First we check permissions
          for (FieldOperationConfig config : getConfigs()) {
              if (config.includes(operationId)) {
                  if (config.getPerm() != null && user != null && !user.hasPermission(config.getPerm())) {
                      return false;
                  }
              }
          }
          if (getDisplay().equalsIgnoreCase("all")) {
              return true;
          }
          final String[] split = getDisplay().split("[ ]");
          for (String string : split) {
              if (string.equalsIgnoreCase(operationId)) {
                  return true;
              }
          }
          return false;
      }
docs: Indicates if the field is shown in the given operation id
  
  @param operationId The Operation id
  @return true if field is displayed on the operation