True CTC have their "Advanced Handling" course. But this seems to be used to select trained candidates for placement to Monarch and EasyJet. I imagine you would have a hard time explaining why that didn't come to pass.
Cabair don't seem to list one on their syllabus.
Not familiar with FTE or the others.
My personal conclusion is that to go out of their way to write "Integrated" and "Jet Bridging" in thier requirements they have something very specific in mind.
/awaiting castigation for missing punctuation and bad smelling.