I've set up my numbered headings style so that each level repeats the numbers from the previous level (1.0, 1.1, 1.1.1).

I've had a request to maintain this numbering scheme EXCEPT at the first level -- they'd like the top level heading (the 1.0 level) to lose the number and have the heading text set flush at the left margin. But they want everything else to stay the same -- the second level should still have the 1.1 numbering, etc., so it would look like this:

HEADING 1
1.1 Heading 2
1.1.1 Heading 3
HEADING 1
2.1 Heading 2
2.1.1 Heading 3

But I can't figure out how to set it up. When I go to modify my multilevel list style, if I turn off the numbering for the first level, I also lose the number associated with the first level in the second and third levels. It ends up looking like this, which is obviously not what I want:

HEADING 1
.1 Heading 2
.1.1 Heading 3

Is it possible to do what they want? Is there something I'm missing?

Thanks!
Caroline