I want to execute action 'QDBM' for multiple vehicles

Dear All,

1)  I want to execute action 'QDBM' for multiple vehicles in VELO. Which BAPI / RFC function module shall I use for execution?

2) I want to copy multiple DBM orders (TC - /dbm/order05) to new orders, for this suggest   BAPI / RFC function module.

Thanks and Regards,

Makarand