The Model I has four total buttons on the left side. Two of these buttons are magnetic and removable, allowing you to change their shape to compliment your play style.
The first removable button is the DPI Focus button, located near where your thumb rests below the other three side buttons.
The second removable button is located at the rear of the group of three side buttons.
Removing a Side Button
1. There is a small groove at the front of the button. Place the included tool or your fingernail into this opening.
2. Lightly lift your finger and the button away from the side of the Model I. Since the buttons are magnetic, you will feel a small amount of resistance as you do this.
3. The magnetic button should begin to slowly pull away from the mouse and lift from the slot. Do this slowly and carefully to ensure that the button does not fly out of your hand and get lost.
Installing a Side Button
1. Select your preferred mouse button shape from the three provided options.
2. Looking at the button interior, you will notice two posts that help it attach to its respective magnetic slot. The first post is flat & horizontal. The second is circular with a hole in the middle. Line up these posts with the matching holes in the empty button slot.
3. Insert the round post into the rear of the slot before inserting the front, horizontal post.
4. Once aligned, the magnets should pick up the replaceable button and snap it securely into place.