What if all Master Yi had to do wasn't just Q?
Imagine you held Q pressed down instead and "drew" a line over your screen (the line can be curved or a circle of a star or whatever; you DRAW) and Master Yi followed that line (the same way he Alpha Strikes right now), attacking any enemy in his path (the line would have a small radius of its own).
If he can't hit an enemy (or if he hits 5 or so) he stops behind the last enemy hit. The line could only be so long but you could take as much time as you want drawing it (and draw it while Meditating?). The downside would be that as long as you're drawing you can't do anything else.