Display of Goals and Subgoals under "My Goals"

I really like how Goals and Sub-Goals Display for “Company Goals” and “Team Goals”:

I’m wondering if that same “laddered” or “tree” style of display could be applied to the “My Goals” tab, where it seems to display Sub-Goals in the same list as Goals:

Our staff is reluctant to use the “My Goals” area because it quickly turns into a really long list, and they are frustrated to not have the clean functionality that they see in “Company Goals” and “Team Goals.”

I really want them to use this tool and am hoping that “My Goals” could be updated by simply adjusting the tool to NOT display the Sub-Goals in the list unless we click the tiny arrow to display each Goal’s sub-goals.