Subform of subform in layouts or record template

Subform of subform in layouts or record template

I have a form that has a subform with parts that also have a subform. Say I have a work order object, with part objects as a subform or lookup, and the parts just have a normal subform non-linked with two fields(operation, and runtime)

Work Order
----Part(link)
--------Operation(non-linked)

Anyway to display these on layouts, or record templates? I currently do it with a jinja script