Can we create default entry of operation/phase# in CORZ/CORS tranactions?

Hi,

I want to make field operation/phase to appear default while entering confirmation using CORZ and cancelling confirmation using CORS. Can you please let me know how this can be acheived? There are only 2 operations in master reciepe and would like to have operation#0020 to appear default while entering and cancel confirmation function.

Thanks in advance.

Nitin