Your Chromebook comes with a track pad. Below are the gestures and actions supported by the track pad.
You can also connect your external mouse.
Source: https://sites.google.com/a/bpsk12.org/bpsedtechchromebooks/the-keyboard
Press Search + Alt.
Or press Launcher + Alt.
Copy selected text: Ctrl + C
Paste text: Ctrl + V
Cut selected text: Ctrl + X
Backspace deletes the previous character
Search the Chromebook, Drive or Google: (Search Key)
Take a screenshot: Press the Screenshot key
