SAP R/3 4.7 version ESS on EP 6.0

We are trying to implement this scenario.

This is the first time i am implementing ESS.

a) The address infotype in sap Hr will show in the

personal info tab of the ESS screen.Does it show up with all the fields as in the address infotype(subtype 1-permanent address).there is an option for deactivating the subtype.is there an option for deactivating the fields?

b)Can i limit the number of fields that can show up. for eg : i just want to see the phone number, street address c)if an employee signs in and changes the phone number and street address it delimits the record, so the data in the remaining fields is still available or is it delimited