Attaching a V_HandHeldActivatable to the same GameObject as your Grabbable, will allow you to both pick up that GameObject and also activate it. Unlike Activatables, V_HandHeldActivatables are activated and deactivated through a key press (left click in 2D, trigger in VR)
This is an activatable component. Activatables hold a boolean on/off value representing their activation state. This state will change when the player interacts with the component.