Record
Camtasia records all activity on the screen within the selected recording area. To record complete the following:
Record the screen
Click the Record button or press Command-Shift-2.
Select the screen area to record:
- Record the full screen (select your monitor if you have multiple monitors)

- Record a region (preset, custom, or recently recorded region)
- Disable the Screen button to record audio or camera only.
Select the audio and camera options:
- Click to enable camera video. Select the camera (such as the built-in iSight or a USB camera) from the dropdown. A preview of the camera appears.

- Click to enable system audio recording (the sound from your computer such as mouse click sounds, audio playing from your speakers, etc.) . If SoundFlower is not currently installed, Camtasia prompts you to install the device.

- Microphone audio is recorded by default. Click the down arrow to select the microphone device.

If recording a region, click the Select Area button to select the area on your screen to record. Make sure to resize windows and set up the location for the recording content before clicking the Select Area button. See Select area to record.
Click the Rec button or press Command-Shift-2.

Press Command-Shift-2 to pause the recording or Command-Option-2 to stop recording.