Any way to change midi channel of a device in Reaper?

[Tiggerdyret]

I've just set up my Midi Fighter Twister and received my Launchpad Mini, when I realized that you can't change midi channels of the Launchpad mini. Now I could remap my Midi Fighter, but it took a fairly long time to set it all up, so I'd rather change my launchpad instead. Is there any way to change channel 1 to something else for just that device?