Possible to manual enter Check no at Payment Wizard?

Hi all,

Just want to check whether anyone of you know how to enable manual entry of check no during Payment Wizard process? I saw check no field but it was not enable. I am having SAP B1 8.81 PL10. Cheque no will be auto generated only after print 'Cheque for Payment'.

Is there anyway that we can enter manually at Wizard and do not need to set auto check no? Thanks in advance.