Add Layer Styles / Blending Options to contextual menu

Both of these are already accessible from the context menu. Whenever you right-click/context-click over something, AE changes the current selection to whatever is under your mouse cursor. Layer Styles and Blending modes are offered when the selection is the layer name, the layer’s timeline bar, or the layer itself in the Composition viewport panel. If you right-click below the layer name/bar, you’ll be changing the current selection to one of the layer’s properties, thus changing the context and the options available from the contextual menu.