How to expand "Get-ADPermission"'s "ExtendedRights" property?

Appending this ft identity,user,extendedrights,accessrights allows me to see the extended rights:

[PS] C:\Scripts\Exchange>Get-ReceiveConnector | Get-ADPermission | where {$_.User -like '*anonymous*'} | ft identity,user,extendedrights,accessrights

Identity                                          User                                              ExtendedRights                                    AccessRights
--------                                          ----                                              --------------                                    ------------
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-SMTP-Accept-Authoritative-Domain-Sender} {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-SMTP-Accept-Any-Sender}                  {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-SMTP-Submit}                             {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-Accept-Headers-Routing}                  {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-Store-Create-Named-Properties}           {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-Create-Public-Folder}                    {ExtendedRight}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                                                                        {GenericRead}
CAS01\Default HUBCAS01                       NT AUTHORITY\ANONYMOUS LOGON                                                                        {GenericRead}
CAS01\Client HUBCAS01                        NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-Store-Create-Named-Properties}           {ExtendedRight}
CAS01\Client HUBCAS01                        NT AUTHORITY\ANONYMOUS LOGON                      {ms-Exch-Create-Public-Folder}                    {ExtendedRight}
CAS01\Client HUBCAS01                        NT AUTHORITY\ANONYMOUS LOGON                                                                        {GenericRead}