Open the software
Go to programming
Select throttle
Select Mode (I Do it for all 3 as I use all 3)
Scroll down to Mouse Y/X axis
Right click and select bands
Now "Edit Bands" appears (edit accordingly I us 0%/45%-45%/55%-55%/100%)
Now left click and add your key bind and hit the green check
Name it if you care, i do, trust me it helps and hit enter
Now save your profile and press the profile button and you're set.
Hope this helps