At the moment, Breww has pre-set vessel/tank groupings of:
This feature request is for allowing you to customise these groupings yourself. You could add to the default groupings (as above) and even remove a default group if you don’t need it.
As per this, it would be useful for these groups to be able to be sorted into your own choice of order.
If you’d find this useful, please give this a vote with the button in the top-left