As a user, I would like to show the User Story's remaining hours as a summation of the subtasks remaining hours on the scrum board so I can quickly see at a glance the remaining hours for a story.

Currently, I cannot see the remaining hours of a User Story as I can when viewing the ticket. We would like to see this on the scrum board,

I tried to use the 'Customizing Cards' area when configuring my board, but when I add 'Remaining Hours' field to a card, it shows 'none' on the parent ticket instead of a summary.

Acceptance Criteria:
I can see the summation of all subtasks' remaining hours on the User Story on the scrum board.