add an assignment section as part of a promotion

Dear community,

Do you know if it may be possible to add en entire section into promotion process

to give you more details , my client need differents flexfields available on assignment (add pending worker , hire an employee) and i would like to make this section available in promotion process with all flexfields i configured previously. Is this action is possible or i need to set up each flexfields available from assignment section from 0 ?

In advance thank you,

Ruben