EVE Developers scope search box bookmarklet (source)

scope_search.js

document.head.appendChild(document.createElement("style")).innerHTML = ".scopeSearchHidden{display:none !important}" +
    ".scopeSearchInput{width:270px;display:block;padding:1px;border:1px solid #ccc;border-bottom:0;border-radius:3px 3px 0 0;box-shadow:inset 0 1px 1px rgba(0,0,0,0.075);}" +
    ".scopeMultiClick{width:270px;display:block;padding:1px;border:1px solid #ccc;border-top:0;border-radius:0 0 3px 3px;box-shadow:inset 0 1px 1px rgba(0,0,0,0.075);}" +
    ".ms-container .ms-list{margin-bottom:0 !important;border-radius:0 !important;}";

const scopeSearch = (s, e) => {
    e.querySelectorAll("li").forEach(e => e.innerText.indexOf(s) > -1 ? e.classList.remove("scopeSearchHidden") : e.classList.add("scopeSearchHidden"));
};
const clickAll = (e) => {
    e.querySelectorAll("li").forEach(e => {
        if (e.style.display !== "none" && !e.classList.contains("scopeSearchHidden")) {
            e.click();
        }
    });
};

document.querySelectorAll("#ms-scopes>div").forEach(e => {
    e.querySelector(".scopeSearchInput").remove();
    let s = document.createElement("input");
    s.className = "scopeSearchInput";
    s.oninput = () => scopeSearch(s.value, e);
    e.insertBefore(s, e.childNodes[1]);
    let c = document.createElement("button");
    c.type = "button";
    c.className = "scopeMultiClick";
    c.onclick = () => clickAll(e);
    c.innerText = {"ms-selectable": "Add all shown", "ms-selection": "Remove all shown"}[e.className];
    e.insertBefore(c, null);
});