Custom percentages for Energy Saver activation

This is a suggestion to add custom energy saver activation percentages. “on battery” and “below 20%” is not enough options. for example, my old lenovo laptop’s battery dies at 40% and i mainly use it for the web version of MS Word in brave and i’d like to have battery saver activated at 60% so i get 20% at the bottom of my battery, in battery saver.
it would also be great if i could pick what happens on battery saver. E.g. picking if smoothscrolling is disabled, and if cpu intensive background tabs get frozen (without going into tags)