Nested Parent/Subtasks in Board View

I recently upgraded to planner and project plan 5 (planner premium), with one of my most anticipated features being subtasks and dependencies. My group usually uses board view to look at our tasks, but if I make a parent/subtask relationship in the grid view, the parent task is not shown in the board view. I know most people use one plan for one specific project, but my tech impaired supervisors need one place to look at all projects, so I need to have everything in one plan to reduce difficulties in navigating planner and finding tasks. 

I am testing out using portfolios for this reason as well.

I am hoping someone else has the same wish and this can become an action item in the future.