How to insert record to another window field

[Ambrose Tobon]

Hi List,
 
This kind of question is very simple in other languages but i find it tricky to do in Omnis Studio 6.0.
 
The scenario:
 
I have a Policy Details window screen whereby a user can capture policy details including policy number and policy terms. After capturing all the details, a user is suppossed to link the policy with the next of kin and/or child/beneficiary details by policy number. This is done by keying in the child/nok names and policy number(similar to the one already captured).
 
Required:
 
When the NOK/Child window screen is opened, the policy number captured in the policy details should be automatically assigned to the field in the nok/child window instead of keying in again. How do you do that?
 
I hope this information can assist the list in helping me out.
 
Thanks.

Ambrose