RFM12B Technical Issues

I have started a home automation project in which I’m using RFM12B-S2 for wireless communication. The problem is that for the simulation module I’m using Proteus 8 and on this software i cant find these transceivers. I was seeking help how to add this component in Proteus. Thank you.

be aware of this

http://www.airspayce.com/mikem/arduino/RadioHead/