How to create custom web node with desired functionality?

Sanjay_Kabra_(skabra_-_(deleted))

Hi,I am new to builder and require support from your side.I am having problem in creating a llnode and a web node which have the functionality like-when we add the custom created item from the add new item drop down, our custom item should be created and that custom item should contaion another item like task list or channels, as it happens when we add a project by checking, add task list channels checkbox.Note:Here i dont need any check box default it should be created. In which of the script i need to make the changes and what kind of changes, please help me to perform this task.