This idea has been merged into another idea. To comment or vote on this idea, please visit APP-I-4272 Ability to filter goals and initiatives by more than one attribute.
Current Initiatives graph view can only show Initiatives from the current workspace. If multiple levels of workspace are used, then it isn't possible to visually manipulate effort/value on the same view.
Thank you for your idea. I am going to merge this with this idea since extending the filter options would solve this request as well.