C4C Sales Quoutes Mass Update

Hello experts

I have a problem with sales quotes update

I need to update 30,000 sales quotes, but using the migration tool is not possible to update and Mass data Maintenance functionallity has not option for sales quote.

I need to add a new party involved (approver role) in the parties involved  tab for these 30,000 sales quotes.

Appreciate your help.

Thanks in advance