By TOM BOWSER
Enable "Commands keyboard Focus" by clicking on the Commands Keyboard Focus button (a/z) at the upper right corner of the Pro Tools Edit window. See the image below.
![Track in Pro Tools showing the Commands Keyboard Focus button. Track in Pro Tools showing the Commands Keyboard Focus button.](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpvc04g0_FCnho6nFAtVE4vHdznJVUM6YeA1qGPqov1yOXLxaNiRtbQxloQY4Mf_TXTHoO9A33FVxchgEuj713KtV6ibQYnQSo6oMjVN_VQTPS5mvDVPrYaxo0rM8fG4mxBvaQYQ4H2JM_/s1600/Pro+Tools+Command+Focus+Button.png)
Press and hold down the Ctrl + Alt keys:
- press the [ (left bracket) key to Zoom out vertically
- press the ] (right bracket) key to Zoom in vertically
Press the:
- R key on your keyboard to Zoom out horizontally
- T key to Zoom in horizontally