In the invitation helpdesk or new in the new function Travel allowance for invited speakers and chairs you can set travel grants and free nights for your invited speakers and chairs.

If you want that invited speakers / chairs can waive their reimbursement like travel grant or free nights in a hotel, you can activate it in "Programme - Setup - Invitation Setup".

This function will be shown in the invitation desktop module and they can waive set free nights and travel grants individually.