iphone and ipad don't show up in left column of new iTunes

I recently installed the new iTunes version.

I don't understand how to "manually manage music and videos". How do I copy a file of music or an ap from iTunes to the iPhone or iPad? They don't show up now in the left hand column that lists the playlists. I don't see how to drag something to the device.

Both the iPad and the iPhone appear in the upper right corner of the iTunes screen. I can click there and see the summary of memory use and options on the device. I can also see both of them as disk drives in "my computer." I can drag photos from the folder that shows up there onto my computer.