Copy and Rename of a Pin in Symbol

Hi,

Can someone help me with the skill commands to copy and rename a pin.

Problem Def: I need to add a new pin in all my symbols. The symbol view can have different pin shapes (round, square, hexagon etc ). The new pin should have the same shape as the rest of the pins in the symbol.

 I was thinking of copying an existing pin and changing the name. I managed to copy the pin using schCopy but i wasnt able to rename the pin.

-Anil