To import click "Preset" and then "Import Preset". My preset includes my own Cab IRs so make sure you save everything accordingly in the next window. It will ask you where you want to save the preset and the cabs, so make sure it doesn't overwrite anything!
 
Lucas Messore Studio Guitar Rig Fractal Audio Axe FX III preset - the ultimate preset for guitarists seeking perfection. This preset includes multiple high gain rhythm tones, multiple leads, greasy clean, squeaky clean, and ambient tones across all 8 scenes. All blocks have all four channels dialed in, making it easy to audition different effects. With compression, drive pedals, British and American amps, noise gates, various cabs, various delay and reverb effects, and chorus/pitch shifting effects, this preset has everything you need to do serious guitar recording and gigging. 
 
And that's not all - this preset also includes Lucas Messore's custom IRs with a Mesa Boogie 4x12 cab from the early 2000s, as well as a Mesa Boogie 2x12 cab, allowing you to achieve the classic Mesa Boogie sound from the comfort of your own studio. This Fractal Audio Axe FX III preset is the ultimate tool for any serious guitarist. Don't settle for less than perfection - download this preset today and elevate your tone to new heights.
 
INSTRUCTIONS: In Axe-Edit click Preset, then Import Preset. Then find the LM Studio Preset. Make sure you save it to an empty preset. Make sure you save my cab IR's to an empy cab block as well.