oreq pool net "speed lock system"

[4x4tx]

I bought a gorilla net last night and pole to go with it...it came with a extra clip that came with four notches instead of 2...trying to take out the 2 notch to replace with the 4 since if you use their poles it can use the 4 notch for greater strength and less stress. How the heck do you replace it? I got the plastic second cover off but cant see how to get the 2 notch from out of the inside?