I'm adding an "Updated by" field to a task and following your instructions:
You should have been able to accomplish the goal by just creating the new EditView record in the admin area. For the Data Field, specify the custom field where the ID will be stored, such as SPLIT_WITH_ID_C. For the Display Field, use an undefined field such as SPLIT_WITH_NAME. When the form is rendered, the invalid name should be retrieved from the Users table.
I need to return the user's name instead of their ID, I haven't been able to figure that out... any help is appreciated.
The User full name is now available in the latest build. What version are your currently running?