Add presets to shaders menu

Hi,
I was wondering how I’d be able to add additional shaders to presets that I can turn on/off as and when I want rather than as defaults that are loaded before or video resize.

I ask this as I’d like to add the grayscale shader.

Thanks very much,
Charles

You can create presets here:
Options > Playback > Shaders

Add an empty preset called "Disabled" to easily turn shaders off.

If you want different combinations of shaders, then you need to create a preset for each combo.