How to use the bpmn-js-properties-panel/lib/helper/CmdHelper.addElementsTolist function in bpmn-js-properties-panel

payloadMappings = createPayloadMappings(parent, bpmnFactory, {
          mapping: []
        });

        commands.push(cmdHelper.addAndRemoveElementsFromList(
          element,
          extensionElements,
          'values',
          'extensionElements',
          [payloadMappings],
          []
        ));
      }

      const newElem = createMapping(type, payloadMappings, bpmnFactory, { source: 'sourceValue', target: 'targetValue', type: 'PUT' });
      commands.push(cmdHelper.addElementsTolist(element, payloadMappings, prop, [newElem]));

      return commands;
    };
  };

inputParameters: [],
          outputParameters: []
        });

        commands.push(cmdHelper.addAndRemoveElementsFromList(
          element,
          extensionElements,
          'values',
          'extensionElements',
          [ inputOutput ],
          []
        ));
      }

      const newElem = createParameter(type, inputOutput, bpmnFactory, { source: 'sourceValue', target: 'targetValue' });
      commands.push(cmdHelper.addElementsTolist(element, inputOutput, prop, [ newElem ]));

      return commands;
    };
  };

var setElementValue = function(element,values,node,propertyName) {
    var bo = getBusinessObject(element);
    var entry = values;
    var extensionElements = bo.get('extensionElements');
    var updates= [];
    if (!extensionElements) {
      extensionElements = bpmnFactory.create('bpmn:ExtensionElements');
      updates.push(cmdHelper.updateBusinessObject(
        element, bo, objectWithKey('extensionElements', extensionElements)
      ));
    }

    var camundaProperties = findExtension(extensionElements, 'camunda:Properties');
    if (!camundaProperties) {
      camundaProperties = bpmnFactory.create('camunda:Properties');
      updates.push(cmdHelper.addElementsTolist(
        element, extensionElements, 'values', [ camundaProperties ]
      ));
    }
    var existingCamundaProperty = findCamundaProperty(camundaProperties,{'name':propertyName});
    if (values != null && values[propertyName] != null) {
      values = values[propertyName];
    }
    var camundaProperty = bpmnFactory.create('camunda:Property', {
      name: propertyName,
      value: values || ''
    });
    updates.push(cmdHelper.addAndRemoveElementsFromList(
      element,
      camundaProperties,
      'values',
      null,