Autosave is missing

With the previous layout, if you wrote a new comment or created a new thread, the forum engine automatically saved the unposted content. And later you could choose if you want to load or delete permanently that content.

This was very useful in scenarios like: if you close a tab in your browser by mistake and you haven't yet posted the new comment/thread.

Now it seems it is missing (along with a lot of features) in the new forums.

Would it be possible to reimplement this, (as this is indeed useful)?