The shortcut I presently use is to save my customized settings as Animation Presets in the Effects Panel. Using keywords, like "Bill Keylight" and "Bill Colorista", all I have to do is type "Bill" in the Effects & Presets search bar and every preset I customized and saved for Bill is displayed. I can then select them all and apply them to the layer. However, is there a way to take all my "Bill" presets and combine them into one preset without having to do any scripting/coding?
You can make an animation preset for every effect and keyframe you have on a single layer. Just press the "U" key twice to reveal everything that's not at the default values, select them all and create your preset.
If you want to combine a bunch of presets that you've already created then apply them all to a layer, select all the properties and create a new Animation Preset.
If you want to use multiple layers you have to write a script.
That's it! Thanks.