Ability to automatically populate a HubSpot user property with the user who made a specific change.

It would be very helpful to be able to make a workflow that is triggered when a Hubspot user updates a property (for example, marks a property as "researched") that will have his (the triggerer's) user name populate a different Hubspot-user typed property (e.g. "Researcher".) At the moment, when making a workflow with a trigger of when a property is marked  "researched", when I try to set an action of setting the "Researcher" property, I have to choose a user from the list of users and cannot specify entering the person who caused the trigger (which will keep changing.) This functionality would save a researcher from having to always fill in his name when he has done the work, and make sure we know who did it.