Playing with Sharepoint 2013 I found that now you can easily edit the central administration as you wish.
Good One, isnt it.?
Now, in the insert tab you have something new called App Part, I suppose this comes from the new Application Catalog which is different from solution gallery.
Read more about it here:
You can add list items in a view that looks like excel, in the same webpart, you don’t have to go to datasheetview.