Generic step up/step down about diceroller HOT 1 OPEN

Could you possibly do something like this where you specify the starting die, increment, and ending die? Like .Step(d4, 2, d12) would roll d4, d6, d8, d10, d12 and .Step(d6, -1, d2) would do d6, d5, d4, d3, d2? Of course then you would get weird stuff on the first example where if you did d4-d20 it would do d14, d16, and d18. Maybe an optional parameter to use standard dice or not? So .Step(d4, 2, 20, Y) would use only standard dice (d4, d6, d8, d10, d12, d20, d100 (ignored in this example) )? Just some thoughts. Thanks.

from diceroller.