How to update the selected line in the Subform on click of an action button in the Mainform in NAV

Introduction:
◾The requirement was such that , the user will select a line in the subform.
◾The subform has fields like the Customer ID, Customer Name, and a field Recieved Crates.
◾On click of the action button in the Main form, a page opens which contains the details of the selected line in the subform like Customer ID and Customer Name also a field Crate recieved(Integer Datatype).

Bron : CloudFronts
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