I built the inquiry management system on Trello.
I manage the inquiry by inquiry number which is put by myself.
Customer inquiry is come from E-mail.
If Trello receive the e-mail, inquiry card is automatically created.
But the inquiry number is put by my self...
I want to put the number automatically by Butler.
It's like {max value of [inquiry number] field on the board +1 } is put to the new card.
Does anyone knows how to command it to Trello / Butler?