Cubase Elements 11: audio features

I would like to do what I think of as basic features in Cubase Elements 11: Adjust volume, tempo and pitch. Volume is easy and I have figured out tempo for the whole piece. Can’t understand how to change pitch and how to change tempo is segments of the audio.

On pitching, if you want to transpose an entire clip or song, you can activate the info line in the layout configuration next to the section icons on the top-right: