can we make the effect of machete and cinderhulk which leaves monsters at 1 HP toggleable?

more often than not, i'd like not to lose extra HP to monsters because i need to land that one last auto, or when i'm clearing and a close ally needs help so i leave the buff thinking my cinderhulk+jungle DoT effect would cut the work only to have it at 1 HP, and you have to make the call of fate whether you should go back and show that jungle monster who's boss and faceslap him across the face for disrespecting you at that 1 HP taunt, or save a teammate.