Subscribed threads

[Imp]

No
When a subscribed thread gets a new post it appears in your User CP with Reply Unsubscribe under the thread name. As this thread is still active i do not want to unsubscribe. Once it becomes inactive as in no new posts I then want periodicaly to clear my subscibed threads out. So you press view all subscibed threads. Now they no longer contain Reply Unsubscribe links. So without spending ages opening each link & unsubscribing from its page then going back to userCP opening all links & repeating how do I do it.
In a nutshell I want to know how I get the Unsubscribe link to appear without someone posting in that thread