MBAM group policies to encrypt removable media

Hello, 

I need help to configure MBAM group policies to encrypt removable storage.

It should work like this :

- User type a password to unlock the drive

- MBAM is used for recovey in case the user forgets the password.

My issue is that when the user turns on Bitlocker, he is prompted to save password.

But the user has no other location to save password since all local drives are also encrypted.

MBAM recovery is enough if the user forgets the password. So there is no need for the user to save recovery information. Is there a way to disable this step ?