midi bump(flash)

Is it possible something else?: press flash button cue1 and leave flash button cue2...Why I have such a request?Because macro midi string; Cue1 trigg midi string send message Not On, Cue2 trigg midi string send message Not Off.(midi flash)Hold up when you want Not On,
When you leave the..NotOff.Does it work this way flash button press cue1 leave cue2....(sorry I hope you could tell).
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