Hi,
as far as I know, if client computer was redirected to another NS server, then NS server will send batch events to another NS servers in hierarchy, to let them know that this client computer is now managed by me, therefore another NS servers will know about this changed state.
However I don't know, whether such event appears and delivers to all NS servers in hierarchy in case if client computer was retired on one of NS servers. (I didn't test such scenario) - Probably you can check, if you will set client computer as retired on Parent Server, then will this event happens on other child servers?
If it works, otherwise, you will don't need such right click action :)
Thanks,
IP.