Display field for Linked Froms?

Apologies if this is basic, but I seem to keep getting tripped up with some of these “minor” UI details!

I would like to specify the field displayed on the parent form of a one-to-many relationship. Here’s my (hopefully) simple example:

Form 1 contains a list of “computers”
Form 2 contains a list of “users”
Form 3 contains a list of “networks”

I need to associate a “user” with a “computer”. To do this, I’ve added a “Link to Form” field in the “computers” form, set it as one-to-many, selected the “users” form, and checked “Show inverse relationship”. After doing this, I am able to select a user record and modify its displayed fields from within an individual computer record.

Now that the records are linked, I can see a “Link from form” field in the “users” form, and the relationship I just created is present. The problem is that the field displayed on the users form is just a numeric ID (leftover from SQL dump). I have not found any way to specify which field(s) from the “computers” form (which I presume to be the parent in this example) is shown.

Ideally, I’d like it to display something more identifiable, like a “name” or “description”, however I’d really like the ability to choose dynamically. For example, I would also like to create a second relationship in which a computer is linked to a network… for that link, I may want to display different data in the “link from form” field, such as an IP address, MAC address, etc.

I hope this is making sense. Thanks in advance for any guidance!