In the line you highlighted, enter this instead :
:custom_quest => ["Quests", "View etc.etc.", 229, true, false, 3],
The '3' at the back refers to the common event you will link it to so you can change it to any number you wish.
In this example, go to your common event #3 in your database and enter the following script call :
SceneManager.call(CSCA_Scene_Quest)