Sorry for the delay in getting back to you. Here's the constructed list I used:
Begin Unverified Perl
my $i = 1;
for ($i = 1; $i <= 20; $i++)
my $pos = MAXDIFFRANKATTVALUE("md", $i);
if ($pos <= 10)
You'll want to replace the "20" in line 3 with the number of MaxDiff items, replace the "md" in line 5 with the name of the MaxDiff exercise, replace the "10" in line 6 with the number of list items in the MaxDiff that are part of the relevant brand (I believe you have 14 such items), and replace "attributes" in line 8 with the name of your list of attributes.