1. When viewing an item, click the 'Actions' button in the top right of the screen to open the Actions menu, then select 'Open item editor'.
2. You will be taken to the item editor.
3. Once you're done editing the item, don't forget to save by selecting thebutton at the bottom of the page. You will then be taken back to the item page where you can see the update from the 'History' tab on the page and that the item was updated in the item box next to 'Last updated:'.