Adding a new contact employee to an existing Business partner (OCPR)

Hi Experts,

Can anyone advise how I can add a new contact employee code to an existing business partner.

When I try and setup it replaces the existing contact employee information. I would like to add a new contact employee to the business partner.

I know with SDK we can use

SetCurrentLine Sets the active row to a specified row number. (public method)

Count Returns the number of contact employees included in the object. (public property)

However, with B1if, I am not sure. Or should it automatically know based on the manditory field

Name Sets or returns the employee name. Field name: Name.Mandatory property.

Can any one help. I am new to B1if. HELP!!!!

Tony