How can I ignore "Pressed" event (or Clicked) in Button widget?

I guess, I’m doing something wrong. Linked event “Unbind all events from on Clicked” with Event Construct. But still Doesn’t work.

I created specific event for LMB and RMB.
When I focus on the button, I can use RMB, but still can’t use LMB =(
I know about onclicked, but don’t wanna use, cause also wanna create controle for a gamepad.