While waiting for a unified solution, you can:
Make a line hatch, copy it in place and change the hatch pattern of the copy to solid, then dup border of one or the other hatches. Make any changes to the line weight of the border and the color of the hatches - you can even make the solid hatch semi-transparent in V7 - and then group the objects.
Yes, it’s several steps, but at least you can get to the end result you want right now.