Something like in the image . When I press " A " the pyramid in the center should face to the Left, when I press " D " the pyramid should face to the Right etc . The pyramid should not be rotated by the mouse, only the the keyboard .
Why don’t you just tick the option in the pawn/character to face the direction of movement? That way, if you press A, the character will start rotating towards the left side (until it’s alligned), if you press W, it will rotate up (until it’s alligned) and so on.
Maybe I’m just not understanding your question, but this is a built-in behaviour in pawns and characters.