OK seems there is a bug.
No matter how many times I do exactly as you suggest, the list of Persons continues to show its original attributes and not the ones I tell it to show in the Presentation window of the attribute.
Situation is a little more complex than originally described:
Account.MainProspect is a one to one peer ref. to Person
Account.OtherProspects is a one to many peer ref. to Person
Account.MainProspect displays the attributes selected in its Presentation window.
Account.OtherProspects is stuck showing attributes that are different from those selected in its Presentation window.
Both are set to show the same attributes in their Presentation windows.
Stuck.
Terry