Camtasia Studio: Extend frame or freeze frame
Extending or freezing a frame allows you to pace your video better. More importantly, since freeze frames are applied on a per track basis, it buys you more time for something like a voiceover or an annotation. Freezing the frame Move the play head to the frame you want to extend. Right-Click on the track you want to extend and choose the Extend Frame option or press SHIFT+E. For the keyboard shortcut to work, the track must be selected first.