[FEATURE-REQUEST] Have a way to call a custom attribute in show/edit/create

[Morzaram]

Hey there I'm wanting to show a custom read only field where I can populate it.

For example if I have an association submitter, and they submit and event I want to show their name and email on the event show page. Is there a way to do this right now?

for example

submitter_name: %{
        type: :string,
        value: fn event->
          event.submitter.name
        end
      }

Thank you in advance.