Expanding/Collapsing all subtasks in a project at once

[Phil_Seeman]

Currently this is not possible. But you can add your vote for that capability (which I also think would be great) here:

Ability to expand/contract all subtasks in task list at once

Is there a way to expand/collapse all task groups in the List view? The latest update allows for expansion of tasks groups that contains subslists but I have to manually click each if I want to expand (or collapse) all of them at once.