Using the zoom facility
You use the zoom facility in Modeler to view a diagram in more or less detail. You can set the zoom level to define the area on the active diagram that you want to zoom in on.
You can use Fit symbols to View to optimize the screen display by displaying the diagram in the largest possible scale available for the open window. This feature is useful if you have been zooming in and out to areas of the diagram and you want to see the diagram in its entirety. Note that if any items are selected on the diagram, the Fit symbols to View command displays the selected items in the largest possible scale.
Note that you can zoom in and zoom out of the diagram through the Diagram Thumbnail pane. For more information, see Using the diagram thumbnail pane.
To set the zoom level through the common diagram tab:
1. Select the items for which you want to zoom in or zoom out.
2. From the drop-down list on the Common Diagram tab, select the percentage at which you want to view the diagram; or type in the percentage at which you want to view the diagram and press the Enter key.
To zoom in or zoom out through the common diagram tab:
1. Select the items for which you want to zoom in or zoom out.
2. To zoom in, on the View tab, click the 
Zoom In button.
Zoom In button.To zoom out, on the View tab, click the 
Zoom Out button.
Zoom Out button.To zoom in or zoom out through the mouse wheel:
1. Position the mouse pointer where you want to zoom in or zoom out.
2. To zoom in, press and hold down the CTRL key, and then rotate the mouse wheel backward.
To zoom out, press and hold down the CTRL key, and then rotate the mouse wheel forward.
To zoom in or zoom out through the keyboard:
• To zoom in, press and hold down the CTRL key, and then click + key on the numeric pad.
• To zoom out, press and hold down the CTRL key, and then click - key on the numeric pad.
To fit the diagram into the size of the view:
1. Ensure that no items are selected on the diagram.
2. On the View tab, click 
Fit symbols to View button.
Fit symbols to View button.To fit the selected items into the size of the view:
1. Select the items you want to view.
2. On the View tab, click Fit symbols to View button.
Fit symbols to View button.