You can click and drag or use the mouse wheel to zoom in or out.
Choices
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To zoom horizontally, position the mouse pointer over the time ruler. Click, and drag up or down.
Tip
To maintain the mouse pointer position while doing so, press Shift before you drag.
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To zoom horizontally around the edit cursor position, press Ctrl/Cmd-Shift, point at a waveform, and use the mouse wheel.
Tip
To zoom around the mouse pointer position, press Ctrl/Cmd instead.
- To zoom vertically, press Shift, point at a waveform, and use the mouse wheel.