SPD workflow- Custom Task form

Question

Hi All,

I am running into a scenario where I need to display List Item (Approving context) properties/Fields in custom task form. But I am looking into SharePoint Designer created Workflow.

I can see, custom task form in the Workflow folder in SPD. But not sure, how to change it to display details about list item. Any pointers or links will be a real help.

Thanks in Advance, Rupali