Need help with Jobly template

I tried to customize (and fix some bugs) with Jobly template.
Currently, it is allowed to add tax and discount on the quote page, but not on the create job page.
I tried to find the place where data on quote page can be transferred to the job page when converting a quote to a job, but I could not find such place(actions, event, etc).
Can anyone help me out?
Thanks a lot