How to switch player like in the game "Driver" ?

Hi.
I try to realize a blueprint that allows me to switch of perso a bit like in the game Driver
Basically, make sure to lock a character with the central vector (laser beam below), then, only if the character is hit by the laser beam, allow me to press a key to possess it.
So I made the following blueprints (helping me with tutorials on the internet):

  • Laser beam vector
  • Lock the target (+ display a sphere above when the character is locked)
  • Switch character when I press “q”
    However I can not connect them to reach the final result.
    Could you help me please?