descendants function - re-ordering hierarchy

[snowy]

I'm using the descendants function to return all members from a hierarchy and finding it really useful, especially in conjunction with the Level Indentation property. However I'm struggling to change the order it displays.

For example, I have the following item:

descendants( [GRAND TOTAL], 3,  beforewithmember )

This returns a list with the higher levels first, like this:

GRAND TOTAL
   SUBTOTAL 1
      Line Item 1
      Line Item 2
      Line Item 3
   SUBTOTAL 2
      Line Item 4
      Line Item 5
      Line Item 6

...and so on.

However my users are requesting that we display the details first and the subtotals at the end, like this:

      Line Item 1
      Line Item 2
      Line Item 3
   SUBTOTAL 1
      Line Item 4
      Line Item 5
      Line Item 6
   SUBTOTAL 2
GRAND TOTAL


Does anyone know a way of doing this? All I've found is this ominously empty thread