Suggestion for Future Update: Layer Visibility as History State
Please add a Preference to enable/disable "Layer Visibility" as a History State.
I will frequently turn a layer on and off to see and catch differences when compositing. There can easily be 10-20+ history states of "Layer Visibility" before I find the last tool (usually a brush tool) that I acutally used. If I need to undo a series of brush strokes, it can easily run my history states past my set limit (forcing me to have to set my limit higher).