Display RFQ and PR Associated to outline agreement (Contract) in PO Screen

Dear SAP expert, 

I've created an RFQ successful notation of PR, past a declaration (ME31K) successful notation of RFQ, past created a PO successful refernce of the contract

PR > RFQ > Contract > PO

in PO surface (ME21N) I lone person the declaration number,  the PR and RFQ fig is not displayed, 

Is determination immoderate mode to show the RFQ associated to declaration and to PR associated to RFQ In the PO surface ?

if not imaginable successful stadard, wherever tin I find successful the RFQ surface the PR fig associated to it 

and successful interaction screen  the RFQ created from it 

Could you delight assistance me

Thank you successful advance