We are using the Scrum method to organize our work. Every product backlog task has several sprint tasks of varying complexity, stored as points in the sprint task. In the project workboard of a sprint it is good to see an overview over all tasks and the number of total points of each column. Sometimes it would be nice to see the complexity of a product backlog task, or more specific: the complexity of all the sub tasks of the product backlog task. As the product backlog task itself does not have any points, we could put the sum of all sub tasks as points in the product backlog task, but 1. this would also be added to the total number of points of the sprint and 2. as soon as a point of a task changes or a new task is added, the points of the product task has to be updated, too.
Best solution for us would be to show the points of the sub and parent tasks in the Task Graph. One could think of showing the sum of all tasks in the project workboard, too, but I guess this would add unnecessary complexity to the overview.