Request: up the max reps in double progression

When I do alternating side exercises (side lunges for example) I count every side rep towards the total so it makes it easier to see total weight lifted. The double progression (which I love) maxes out the range at 15-20. Can we increase that range? For doing the alternating exercises I would like a range up to 24. I would do 16-24. Others might want even more range. Thanks.