How to disable fnFilter searching on hidden columns

Mezase

I am working on something very similar to this (http://datatables.net/examples/api/multi_filter.html), however I have at least two hidden columns with IDs that might not necessarily have to be on the first columns and fnFilter seems to pick them up messing with my input box indexes.
Is there any way to avoid this? I tried using bSearchable but no luck :c

Thx!