About input

If I put input such as(G key)into a playercontrollerBP,it will work,but if I put it into a custom BP or a playercharacterBP,it never gets fired…Please help me thanks.

Player controller must be consuming the input. Select the input node and then disable Consume Input in the details panel.

Thanks for your reply,but it seems no use for me.But finally I have found that I need to uncheck the block input in the PlayerControllerBP and that works!