As far as different schedules, what I posted is generated from 7 different list, combined in Excel, so that's no problem. Much of the list is pulled from property objects.. an exterior wall pulls out DW, mud, tape, studs, plates, sheathing, cladding, paint, insulation etc. All my composites are linked to property objects. All the framing is from objects I ID to what the member is (2x10x12, 2x10x16, 2x8x10pt.. etc.)
Units are the bases of a material list, so, that's a bummer IS can't do units. That I didn't know, but like I said, I gave up using it for this purpose. About all I use it for is a list of drawings/sheets, windows and doors. I read too many post with people getting inconsistent results, especially with new releases.