Entering an item's details
In each view you can determine whether you only want to see the name of an item, or all of its details:
The "details" are what you have input for the various aspects.
You "open" or "close" all the items in a view using "View | Toggle names/details"
Alternatively you can open or close a single item using its context menu: choose "Show details" or "Show just name". If you have one, you can press the middle mouse key as a short-cut; however, this depends on how your operating system is set up.
When you want to create a new item, you can choose