How do i make the Add job fields of budget (min and max) optional?

Hi,

I am keen to get using the job and expert plugin again however the add job fields are hard to customise.

I can use the branding plugin to rename the fields easily but there are fields that are essential (required) that i would like to make optional fields... or hide altogether.

Can you please advise what is the simplest method to hide/change these fields.

Many thanks
Chris