How to take screenshot on mac without keyboard
Options: This section lets you choose whether you want to see a preview of the screenshot after you take it ( Show Floating Thumbnail).
If you want to add audio, it lets you pick which microphone to use. Microphone: This lets you choose whether to include audio (for video screen captures).Timer: This option lets you choose whether to capture the screenshot immediately or after a short timer of five or 10 seconds.Save to: This option lets you choose whether you want to save the screenshot to a folder like Desktop or Documents, send it to somebody using the Mail or Messages apps, open it in Preview (for still images) or QuickTime Player (for videos), or copy it to the Clipboard to paste somewhere else.Clicking it opens a context menu that lets you change these settings: