Parent Link on Service Catalog Task [sc_task]

Build: London

I have service catalog tasks [sc_task]. Which are children of my request items [sc_req_item]. Which themselves are children of requests [sc_req]. In the OOTB instance, an SCTASK  has a  reference field, which allows for lookups and it has a preview button which allows previews and the ability to open the parent RITM. Great.

Well, I have users that don't want to use the preview button to preview or open the associated parent RITM, they just want a link. I thought this would be a simple matter of configuring the Form Layout or Related Lists and adding a link on the [sc_task] form, but it seems I'm mistaken.

Do I actually have to go through the process of creating an explicit one to many relationship between [sc_task] & [sc_req_item] or am I really not understanding how to use Form Layout or Related Lists?