UMG Mouse Pressed Event not existing?

A button has a OnClicked event, which is apparently the only mouse click event that can be accessed in UMG. However I want to add logic - like changing the style of children - when the mouse is pressed down, not only when “clicked”, and therefore need a separate event. It’s also not possible to get the state of the mouse buttons to check it every tick. There are On Mouse Enter events, why not On Mouse Button Down?

How can I delegate the Pressed event the button receives (since there are style options for it in the buttons details panel) to the Event Graph to add logic to it?

It is possible to override OnMouseButtonDown - but that function is only called when any button except the left mouse button is clicked. It seems that the buttons own OnClicked event consumes every left mouse button interaction.