Mapping Confirm Auto Attack

[Hitoriki]

I don't really follow what you're asking here.

To auto attack you go into active mode the lock in your target.

If you're asking how to enter active mode without using an ability, it's F on a keyboard to toggle active and passive.

Switching to active mode does not automatically auto attack... it just pulls out your weapon. You have to confirm the target by either clicking on the action bar while having the target selected, clicking the target twice, or by pressing confirm(Enter)