Hi Alexander,
I was able to do this somewhat using the Grandparents Title field as a “Prefill values to Child” on the Parent List, then use that Parent’s field value again to Prefill in the grandchilds list.
So 3x vLookups configured in each Grandchild, Parent and Child list.
Then configuring another vLookup field in the GrandParent DFFS that matches the Grandparent Title to the grandchilds prefilled value and it displays.
It dooesn’t have full functionality, it can only be used to Display & Edit exisiting Grandchild items but otherwise works okay.
Screen-shot attached.
