CDS VBAK limit records based on VBAP-POSNR

Hi experts,I have VBAK table and VBAP table, after linking both of the tables I want to display only the records of VBAP-POSNR with multiple POSNR like this POSNR(10, 20, 30, 40 ....) how to do this in CDS or is it possible to do it in CDS only?in SE...