Need macro to print pages in a range in reverse order

Hi all,

I've been trying to figure this out with no success, so hopefully someone from here can help me with this.

I currently have a file with a macro that groups each co-investor and prints out by these groups. For that it works well, however I'm trying to get it to print in reverse order. but still within the groups.

So, for investor 2, it would print the last page first, then the second to last, and so on. I tried a macro where it just printed everything in reverse order, but then I lost the grouping per investor, so that wouldn't work, because when I send to the printer it prints and staples each group.

Can anyone help with this?

I'm attaching a sample file so you can see the code.

Thanks in advance!