Print layout designer HELP

Hi Experts,

I would like to do the following:

I have a new udf in CRD2 (BP addresses).

I would like put out this field to the print layout of AR invoice.

I have put out the OINV.Cardcode,OINV.Shiptocode,CRD2.Address,CRD2.UDF,CRD2.Cardcode, but the field CRD2.UDF is empty.I have tried to use relate to and next segment under Content tab but no way...

Any idea how to link these field to get the CRD2.UDF???