Don't laugh at what you have no clue buddy.
I want to make a combined/mixed impulse (IR) file to use it on Axe-FX processor, it offer 10 user slots for custom cabinet IRs and now i have to use 2 or 3 impulses per preset to have a sound i want. Mixing/combining impulse files to only 1 WAV IR file would help to save processing power (it is less intensive to use 1 IR than 2 or 3 ones at a time in realtime) and to have more "sounds" as i could have 10 different "tones" with 10 cabinets, not 3-5 cabinets like i have now.
deLuther, i still do not understand what you're saying. I have Cubase 5, i also could ask friends with Wavelab or Soundforge, or possibly other WAV editors to help me, but i'm not sure how to mix the IRs right, as one of tries already failed.