How can I utilize the "Linkage" Input Fields for a Custom Action?

Hi all :slight_smile:

I’m currently in the process of building a custom action for an integration app feature.
I’m wondering how I can possibly utilize the following built-in input fields:


It doesn’t seem like there is a built-in way to create/assign dependencies for these input fields to rely on (without creating my own custom triggers/fields), as both of them seem to give this (lack of) feedback when used in an automation recipe:


and

To clarify the question: How do I assign dependencies to these input fields (ideally without creating further custom fields/triggers) in order to use them for a custom automation recipe?