Can Salary amount field in Salary section on Create/edit Job offer page be defaulted to 0 ?

Current outcome:

Currently while creating a job offer, Salary amount is blank. We want to proceed creating a Job Offer with out providing salary amount. So We removed the mandatory feature of the Salary amount field using Page composer but still it is not allowing to continue without entering a valid input for that field.

Expected Outcome:

We want the Salary amount field to be defaulted to 0 and be able to submit the job Offer transaction.

Can anyone please guide how to achieve this? Is this feasible?