Adding new components from vendors in ADS

Can anybody tell me how to add NXP578 device data to ADS library? From NXP (Phillips) zipped file is already available for ADS. How to import that file in ADS , so that it can be used in design?

1. Unzip archive with model NXP578 in your directory.
2 in main window select "Design Kit -Install Design Kit"
3 select browse your directory with model.
4. and run "Install"
than restart ADS

P.S. In the enclosed file a management on installation for NEC

Thanks alot