Each group is a basket of funds; its ₹/period is split equally across the funds in it (a 3-fund group with ₹10k/wk → ₹3.3k each). Every group runs the accumulate strategy (−step/−2·step…% dips, never sells) on the same outlay, so you're comparing baskets on equal footing. Groups load pre-sorted by theme — rename them, add/remove funds, toggle the checkbox to include a group in the run, or build your own.