@PizzaChess61 I made one for you. It can be found in the following link with syntax highlighting, or just as plain text below:
gist.github.com/Xatenev/aa919c93fc3e284c266648c15bba6b0fPress 'p' to go to the previous chapter.
Press 'n' to go to the next chapter.
PS: If you prefer different keys, you can visit
keycode.info/ and press the respective key. It will display their "keycode". Replace the numbers 78 and 80 with the keys you want to use. For example, an alternative usage of <left arrow> and <right arrow> would have the keys 37 and 39, so you would replace 80 with 37 and 78 with 39.
-------------------
// ==UserScript==
//
@name Lichess study enhancement
//
@author Xatenev
//
@match https://*.lichess.org/*
// ==/UserScript==
(function() {
'use strict';
console.log("Lichess study userscript loaded");
document.addEventListener('keydown', onKeyDown);
function onKeyDown(e) {
const activeElement = document.querySelector('.study__chapters .active');
if(activeElement) {
if(e.keyCode === 78) { // press n
const next = activeElement.nextSibling;
if(next) {
next.click();
}
}
if(e.keyCode === 80) { // press p
const previous = activeElement.previousSibling;
if(previous) {
previous.click();
}
}
}
}
})();