Hey Louisbm,
slight update on my pt2 things.
After setting that all up using the 8 different key modes, realised I had no idea which one I was in, so instead set up 8 different profiles that are colour coded.
I then set the scroll wheel right click to change profile to next profile and left click to previous profile, so now when I click right the number pad changes to a different colour so I know which section of controls I am in, and it will display the profile name on screen as a reminder.
Good luck