Add option to be able to check the BXT Phase but not check all of the items below

When choosing a delivery map users are often overwhelmed by having to uncheck everything in a large delivery map except for the one small piece they want, lets say strategy and assessment. Today if the user chooses the Align stage then everything in the align stage is checked and they have to uncheck what they don't want. Could you add the ability to choose the stage but then check what you DO want instead of unchecking everything that you don't want. T