Matrix table

To my knowledge there is not a way to accomplish this with the matrix visual.  Since you want to group some and not all of the measures by Month-year, that is the main issue I see.  You would have to have all of the measures grouped under each month-year heading.  Creating two separate tables would be how I would do this.  Is there a specific need to have it in one contiguous table? Splitting it out may give you more flexibility/readability since the two sections seem to be measuring different things anyway.