It's super quick and easy to make the change to your existing Mount as demonstrated in the short video below. You will need a 3mm Allen (Hex) key.
Lever's are available in Red, Black and White here - Coloured Levers
The Lever can be changed on the Out Front Mount, Out Front Mount Pro, Belt Clip, Mirror Mount and Motorcycle Mount & Ball Adapter only. Unfortunately, you cannot use on the Quad Lock Sports Armband.