Panning and zooming at the current diagram level

When the current level of the diagram is so large that it doesn’t all fit in the viewable part of the window, you can:


Roll the mouse wheel

Drag the scroll bar thumb

Right-click over a scroll bar and select the navigation option that corresponds with what you want to do


Hold down the CTRL key and roll the mouse wheel

Click the zoom toolbar buttons toolbar buttons

Use View > Zoom In and View > Zoom Out

Typically, larger, more complex diagrams should be divided into subsystems and encapsulated in compound blocks.