Solution : https://service.sap.com/sap/support/notes/188510 (SAP Service marketplace login required)
Key words : 
panel fcode screen change module program saplcoko, panel fcode screen change module program saplcoko1, additional key words co02, menu path -> environment -> settle, function codes 'eabr', generate interface saplcocu, program 'saplcocu', program grp, menu painter, additional entries
Related Notes : 
       
| 441435 | Changes from Note 188510 are not implemented currently | 
| 355816 | Authoriztn check missing whn branching to transactn | 
| 35612 | Authorization check for CALL TRANSACTION |