k2600 midi messages

"[email protected] [KurzList]" <[email protected]> 01 May 2019 17:41:04 +0000
Newsgroups gmane.music.equipment.kurzweil
Message-ID <[email protected]>
Hi,
 I have a k2600xs.
 I'm trying to use an external controller in input of the k2600 and together on the midi thru at the pc.
 the controller sends different cc but the k2600 remaps them in different way.
 I need the ccs like the original without remapping. is this possible?
 Otherwise I can re map again (some I've already done) but I cannot find where to remap cc 71, 72, 73 and 74.
 I hope in your help
 thanks in advance
 best regards
 Luca