PI message mapping 1 to many

Hello,

Is there a way to easily perform the following mapping in ESR (graphical tool)?

Source:

<ShipFrom>CUST01</ShipFrom><ShipTo>CUST02</ShipTo>

Destination:

<Party>     <RoleCode>Z1</RoleCode>     <InternalID>CUST01</InternalID></Party><Party>     <RoleCode>Z2</RoleCode>     <InternalID>CUST02</InternalID></Party>

Party has occurence 0..unbounded.

RoleCode Z1 and Z2 are constants.

Thank you in advance for your help,

Guillaume