A way to fix Kalista's ult (Player control issues)

Instead of making the ult completely out of the players control. (Which half the time I get ripped from battle just cause my Kalista wants a kill on poor Sona who's running away, meanwhile my team gets slaughtered cause I'm being pulled away from whatever fight I was in.

Very simple fix:

Turning off or on Kalista's ult.

The champion who Kalista ults is now given the option to turn on and off the ults effects. So they can click the passive icon on top of their status bar and choose to keep it active or inactive. So if your Kalista is making bad choices with her ults, you can disable it to keep her from using it wrong.

If you don't want the risk of being pulled back into a fight by your Kalista when you're at 1/4 health but she doesn't notice, just click the button and she can't ult anymore.

Why didn't Rito make this mechnic in this nature to start off with? Taking control of my champion is incredibly iritating at times especially with a random. Now note, some Kalista's are insanely good with their ults. I had a Kalista once save our Kha'Zik from Fizz's ult by ripping him away from it at the last second so it would trigger in an area away from us, but still keep Kha alive and kicking.

But sometimes they will tear you out of lane and cause you to go flying into a fight you never wanted to take.

Please implement this, it will help in so many situations.