You can quickly lock on to multiple targets that are displayed on the screen.
And aiming at target After lock-on is complete you can launch the missile.
You can use the 2D mode to display the marker at UMG.
You can also use 3D mode to display a marker on the 3D space for virtual reality.
In order to use the lock-on system uses a dedicated game mode, you only need to attach a dedicated component to the actor to lock-on target.
Marker class, etc. to be used in the lock-on system can be changed to suit the project by utilizing the interface.
Please see the video for instructions from the initial level to be able to launch and lock-on.