Is there a way to replicate the MA key ? Like a command that would act as if the MA key is pressed ?

MA key macro
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Is there a way to replicate the MA key ? Like a command that would act as if the MA key is pressed ?
I'm not really sure if this is what you need, but something like this would do the trick:
"Go+ exec x makey"
It doesn't act as if the MAkey is pressed, what I want is to have the MAkey bind on my midi controller.