Timeline Custom Fields - link to contact ID like internal/external attendee

Related products: None

We would like to add another single select field on the timeline entry that links to a contact like internal and external attendee. During calls, our CSM will be asking feedback questions. We do not want to attribute the feedback to all external contacts, just the person who provided it specifically. We have the ability to add a text field, but that does not lookup to the contact. 

@andreammelde Thanks for sharing your request. sorry, this is currently not in our road-map. 

I want to consider other customers interest as well here.