I've created a Custom Field for recording who an Action has been assigned to but am struggling to find the right field type.
I need to be able to choose names of people who are already users on the system or enter a free text name if the user doesn't exist. It's not practical to add everyone as a user as there will be hundreds of them over time.
I also need to be able to have more than one person the action is assigned to.
It's the same field type as on the screen for sending Widgets and also for sending Emails from within a project but I can't work out what setting that is.