There is such a thing as "deciding" and it is a condition. The notion that absolutely no dhammas can be conditioned as wished is silly. Every time one wishes to say something here on Dhammawheel, one has to move the fingers in a specific manner on the keyboard, in order to express what one wishes to say.
"When one thing is practiced & pursued, ignorance is abandoned, clear knowing arises, the conceit 'I am' is abandoned, latent tendencies are uprooted, fetters are abandoned. Which one thing? Mindfulness immersed in the body." -AN 1.230