You can zoom in and out of a model diagram. Zooming in makes the symbols bigger but shows less of a large diagram. Zooming out shows more of the diagram but makes the symbols smaller.
There are two methods for zooming:

|
In lots |
2x scaling: symbols are doubled in (linear) size. |
|
In a bit |
approx. 1.4x scaling: symbols are slightly bigger |
|
To fit |
automatic re-sizing of diagram to fit the window. Note that this is according to the least constraining dimension, so you may not actually see your whole diagram in the window. Thus, if you have a diagram which is very wide, but not tall, then it will be "zoomed to fit" vertically, and you will have to scroll left and right to see the rest of the diagram. |
|
Out a bit |
approx 0.7x scaling: symbols are slightly smaller |
|
Out lots |
0.5x scaling: symbols are halved in (linear) size |