All cryptonight coins have Payment Id !
You have the possibility to download wallet and from the wallet to the Exchange !
Yup.
FYI, anyone who needs to know, it's
transfer
[-p payment_id]
then hit "Enter."
to send from CLI.
Example, to send 100 bips:
transfer 0 bip1gRjTqLtcKdM1xk9aK5FWZG1qhfyV3CwNAvhZD8KVyKVR1X99Aq43WsPBp4LrEWdSMmC2ZK1SPhy zcUvBTSV7GeAoz8UnE 100 -p a1ca72acb23d8e1a838575d4463d31fd6de01e0f5fc986ecee68efcfd614cd1c
GUI has a field for the Payment ID (make sure don't put it in the "Label" field.)