Edit scripts

I went to edit the scripts page - but when the next page showed up there are only up/down arrows that don't do anything when clicked - and when I click on the name of script nothing happens as well. How do I edit the scripts?
If you only see arrows on the Edit page, you are on the Edit List page which allows you to edit the documents that are displayed, not the actual documents. In order to edit a document, you have to click the Edit button for that actual document.