How to simulate WCDMA PA's ACPL,EVM in ADS?

Hi,

I'm just beginning to lerne WCDMA PA simulation.
In ADS, there is an example called WCDMA3G_UE, the WCDMA signal generation and measurement are defined already. but I don't know how can I insert my PA model in it, the 3GPP system is too complex for me. Can anyone help me?

Thanks!