This plugin adds `QuickLoad(number);` global function to RPG Maker MV.

quick-load.js

/*:
 * @plugindesc This plugin adds `QuickLoad(number);` global function to RPG Maker MV.
 * Version : 1.0.0
 * @author Creta Park (https://creft.me/cretapark)
 *
 * @help
 * This plugin simply adds `QuickLoad(number);` global function to RPG Maker MV.
 * 
 * Created by Creta Park (https://creft.me/cretapark)
 */

function QuickLoad(number) {
    
    SoundManager.playLoad();
    SceneManager._scene.fadeOutAll();
    SceneManager.goto(Scene_QuickLoader);
    
    Scene_QuickLoader._number = number;
}

function Scene_QuickLoader() {
    
    this.initialize.apply(this, arguments);
}

Scene_QuickLoader.prototype = Object.create(Scene_Base.prototype);
Scene_QuickLoader.prototype.constructor = Scene_QuickLoader;

Scene_QuickLoader.prototype.start = function() {
    
    Scene_Load.prototype.reloadMapIfUpdated.call(this);
    
    DataManager.loadGame(Scene_QuickLoader._number);
    SceneManager.goto(Scene_Map);
}

Scene_QuickLoader.prototype.terminate = function() {
    
    $gameSystem.onAfterLoad();
}