Collapsable Views?

I would appreciate a toggle in View Management to collapse Tabular Projections so that one can view them by 5, 10, 15, 20 year intervals. The blizzard of figures that one gets with full details is helpful to pinpoint specific line-item results, but if one is interested only in displaying aggregates, it is a challenge to trudge through and figure those out. The "Summary" view isn't in some ways a summary because it displays annual figures that, over a 40-year span, can be more trees than forest.