QF94, You just don't get it: or MAESTRO and the "Mates Rates" button.

[Uncommon Sense]

Thanks for the answer.

I am not an ENR controller, but I would say the quickest way is the pilot simply telling the controller (VHF or CPDLC). He/She can quickly punch it in to TAAATS. Perhaps a sector dude/dudette can confirm/deny?