On and off switchable Macro not possible?

I'm having a Problem,
Im trying to create a Macro, which holds the Key G, after i click my Mouse Button 4 on my Razer Deathadder Elite.
I want it to be toggleable it with the Mouse Button 4 and also disableable with the same Button at any time, but it seems like it is not possible.
Everytime i try to stop it, it doesnt work, i even tried every Repeat Option but i didnt work either..
It keeps holding the Key G for the amount of seconds i put in, and i cant stop it..
Does anyone has an Idea how i can fix this / create such a Macro?