There are some features of modern software that are just accepted as required and you never even consider to ask about them when evaluating software. One of these features is the ability to undo an action, preferably an unlimited number of them. However, the javascript editor in the Teamworks authoring environment does not have an undo. I repeat, you cannot undo an action in the javascript editor. How this happens I don’t know, but this obviously seriously effects the usability of the editor. You are left with the choice of never making an error or using the editor of your choice and pasting in your code when done. If you do use the editor of your choice you lose the autocompletion the authoring environment offers, but the autocompletion really isn’t that useful.