yo, i can’t seem to find this information on the rules and this is something i’ve been wondering myself for the games of GG, 3S, mvc2, etc. thanks!
You can set your controller any way that a game allows.
Why are macros allowed, anyways?
I saw a couple of big name ST players using one button 3K/3P, and that kinda irked me 
Rules:
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http://evo2k.com/playerGuide/gamerules.php
You want the second bullet point under Game Specific Rules: General Rules right at the top of the page.
"All macros available via the in-game controller configuration menu are allowed.
Hardware macros, rapid-fire, or other hardware assisted mechinsims are strictly forbidden. "
thanks, i missed it like a newb.