Zoom In
The View | Zoom | In command increases the magnification of the image in the plot window. The command scrolls the window to keep the point of interest centered. The 3D View | View | Zoom In command increases the magnification of the image in the 3D view. Click to zoom in toward the center of the 3D view window.
Zoom In - Plot
The View | Zoom | In command increases the magnification of the image in the plot window. The command scrolls the window to keep the point of interest centered.
Enter Zoom In Mode
To enter zoom in mode, click the View | Zoom | In command or the 
button in the plot window. The cursor will change to a 
to indicate zoom in mode. Left-click the area on which to center the magnified image.
Exit Zoom In Mode
Press the ESC key or click on another tool command, such as zoom, draw, or reshape, to end zoom in mode.
Zoom with A Wheel Mouse
You can use a wheel mouse to zoom realtime and pan in the plot window or grid node editor. Rotate the wheel forward to zoom in, or rotate the wheel backward to zoom out. Hold down the wheel button straight down, and the cursor will turn to a closed hand. When the cursor is a 
, drag the mouse to pan the plot window. Be sure to click straight down with the scroll wheel. The zoom is changed so that the cursor location remains on the screen.
Zoom with the Keyboard
You can use keyboard commands to zoom in and out of the plot window. The default commands are CTRL + EQUAL SIGN (=) to zoom in, and CTRL + HYPHEN (-) to zoom out.
Zoom In - 3D View
Click the 3D View | View | Zoom In command to change the cursor to zoom-in mode. Click the 3D view window to zoom in to the center of the 3D view window. Press ESC to return the cursor to Trackball mode, or click another 3D View | View command. The 3D view can also be changed by adjusting the values in the Environment properties Camera page.
You can use a wheel mouse to zoom realtime in the 3D view window. Rotate the wheel forward to zoom in, or rotate the wheel backward to zoom out.