Customizing standard MSS Employee Search (Web Dynpro Java)

Hi Guys,
Currently I am working on EP 7.0, and we have some requirements on MSS Employee Search.
Based on SAP help:
Technical Names of iViews : com.sap.pct.erp.mss.employeesearch_geinfo
Technical Names of Web Dynpro Applications : sap.com/mss~eepro/GeneralInformation
So downloaded package msseeprosap.com through NWDI, and opened in NWDS.
There are 3 applications there:
com.sap.xss.hr.eeprofile.GeneralInformation
com.sap.xss.hr.eeprofile.CompensationInformation
com.sap.xss.hr.eeprofile.PersonnelDevelopment
and 2 Components:
CEmployeeProfile_1Comp
CEmployeeProfileAllComp
but there is no views inside these 2 components which contains the screen layout.(E.g: Dropdown list for Employee Selection, Input fields for Last name, Personal Number, Personal area, etc)
How can I identify which package contains the screen layout for employee search?
Thanks a lot.

currently our project has a requirement to modify Employee Search iview: When user select one Org Unit, We need to have a button under the table which contains the users.
We imported package msstmvsap.com and found that it is using OADP screen.
Thus we imported pcui_gpoadpsap.com, we feel View "DataViewView" is the view that contains the user table, so I simply added one textview there, then deploy to server.
Then I run Employee Search, it is giving error
   java.lang.ClassCastException: com.sap.xss.ser.oadp.java.OADPObject incompatible with com.sap.xss.ser.oadp.java.OADPObject
    at com.sap.xss.hr.tmv.vac.VTeamViewerComp.onBeforeOutput(VTeamViewerComp.java:303)
    at com.sap.xss.hr.tmv.vac.wdp.InternalVTeamViewerComp.onBeforeOutput(InternalVTeamViewerComp.java:210)
    at com.sap.xss.hr.tmv.vac.VTeamViewerCompInterface.onBeforeOutput(VTeamViewerCompInterface.java:144)
    at com.sap.xss.hr.tmv.vac.wdp.InternalVTeamViewerCompInterface.onBeforeOutput(InternalVTeamViewerCompInterface.java:136)
    at com.sap.xss.hr.tmv.vac.wdp.InternalVTeamViewerCompInterface$External.onBeforeOutput(InternalVTeamViewerCompInterface.java:212)
Then i removed that textview, deploy again, still it has this problem.
Any help?
Thanks with rewarding points!
Regards,
Guo Feng

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