There seems to be a bug in the module search form.
When you search for modules available in a particular marketplace, the "Secondary Function" field is ignored. Or rather even more complicated, only one of the "Function" fields work.
I would suggest to ask this question over at muffwiggler, much bigger audience.
This would be probably the right forum there:
thank you for this site, it's great.
The feature 'Show Racks of other users which share similar modules' in Command Center is interesting. However I think it selects and orders similar racks solely based on the number of the same modules as in the selected rack. So for a rack which includes a 2hp Osc we get this one as the most similar:
(61 x 2hp Osc, nothing else)
and that's just not very exciting :).
Perhaps one easy way to mitigate this would be to count only distinct shared modules. So the above rack would have a score of 1 and not 61.