Does anyone know how I could edit the options available in the pop-up menu of each layer in the layer list widget? I scrolled thorugh all the files in the widget folder and tried to figure if there is some sort of reference to somewhere else but I couldn't find anything. For now, I don't even want to add additional options in the menu, just take some of them out.
I'm talking about this...

...say I want to remove Transparency, Move Up/Down, and Description from there.