veteran gunners I beseech thee to educate me on this secret.

I understand that the easiest way to do this is at plains overlord over by where there is a healing vahra. spam bullets,recharge,repeat.okay I get that, but please enlighten me as to where the 'afk' part comes in.is there a controller available that does macros for repeated button pressing?or is there something else?little help from those with experience in this field please.