Naresh,
SU22 is for standard SAP delivered tables USOBT & USOBX. You should not be changing these values. I think what you are trying to do is to update USOBT_C & USOBX_C values. You should do it in SU24, there is no mass update option but you can use the multiple selection button to select all the tcodes,
and then update each transaction 1-by-1.
Please make sure you are clear about your intended values for Check Ind. and Proposal Status before you start updating the tcodes.
Regards,
Shivraj Singh