adjust the amount of previews shown
// ==UserScript==
// @name Previews Script
// @namespace http://tampermonkey.net/
// @version 0.1
// @description adjust the amount of previews shown
// @author Oki
// @match https://*.jstris.jezevec10.com/*
// @grant none
// ==/UserScript==
/**************************
Previews Script
**************************/
var previewOption = document.createElement("tr");
previewOption.innerHTML = '<td>Previews:</td><td style="width:100px"><input id="previewControl" oninput="previewSetting.innerHTML=previewControl.value;queueCanvas.height=72*previewControl.value" type="range" min="0" max="5" value="5" step="1" style="width:100px;display:inline-block;padding-top:9px"> <span id="previewSetting">5</span></td>'
tab_settings.children[1].appendChild(previewOption);