I want to create a site column that contain a list of “Project Managers”, where some project managers are already defined inside Active directory and are defined inside a SharePoint security group , while other project managers are external users that are not defined inside our active directory. so what I need is a column type that is a mixture between:-
- Users from a security group . Similar to a column with “People or Group” type that is associated with a security group.
- External users defined inside a list. Similar to a “lookup” column associated with a custom list.
So is there a way to have a single site column that contains both info? Thanks