Instrument definition query

Hi all , just received my hapax and busy hooking up things and generally finding my feet. A question I have regarding the instrument definitions - am I right in thinking this will basically list the CCs in the hapax for most controls of the chosen instrument so if I select it for a certain track with that synth on it will mean I can map macros without having to hunt for cc numbers and info ? Or am I understanding it wrong?

Cheers!

that is correct