Help on skill code to add PIN information

Hi Friends,

         I have a library with many digital cells(like AND, OR,...etc). Every cell had a met1(tt) label with port name to define PIN inforamation & to pass LVS. But I need to add a MET1 PIN at wherever met1(tt) layer exists for every digital cell of library by automation.

So, Plz help on skill code to do this.

Regards,

Narendra