Activate Target Point missing

I am trying to use the SU-39 KH25 Missiles in Air to Air after watching some youtube videos and it looking fun. All these guides have activate target point as the primary keybind to activate the laser & lock onto targets.

I do not have the keybind for Activate target point available to me, it is not in any of my controls - I saw to use Sight Stabilisation, but this does absoultely nothing for me when trying to lock onto a target, it just does not, it instead creates a lock on the exact spot I select.

How can i activate the target point?

i believe it got reworked last update
its called “activate point of interest” now