That is a root specific one. In order to do what you want you need to select input >keyboard >the key you want. & ignore the key modifier screen.
This is the only Tasker & fitbit profile I've built, I usually have Tasker push me a notification in the morning and evening giving me the option to toggle this setting.
Seams to solve the problem for me.
Sent from my Nexus 4 using xda app-developers app