zero '0' out of Call Centre

We are willing to sponsor the implementation of a zero out feature on the callcentre app. We currently have this working but every time we update a field in the callcentre extension, if of course over writes the dialplan.

condition destination_number ^35$
action bind_digit_action inqueue,0,exec:transfer,*9920 XML mypbx.domain.com,aleg,self
action digit_action_set_realm inqueue

There would have to be the option added to the admin of callcentre app to admin this. It is good feature the makes the fusionpbx a great app for small companies needing a basic callcentre.