Diagram Editor

Scroll Diagram

You can scroll diagram by typical mouse wheel or touch pad scroll gestures. Typically mouse wheel scrolls vertical and mouse wheel with Shift key scrolls horizontal.
Or you can also scroll diagram by mouse left button dragging while pressing Control key (Command for Mac) in Diagram Editor.

Minimap

Minimap shows the entire diagram and the focusing area of the diagram. Clicking a point on the Minimap will scroll the diagram to the clicked point.
To hide or show the Minimap, toggle by press Ctrl+Alt+M (Cmd+Opt+M)or select View | Minimap in Menu Bar or click Minimap icon in Toolbar.

Select Views

You can select views only in select mode (Click cursor icon on Toolbox or ESC key).
To select a single element, click the element with mouse left button.
To select multiple elements, drag an area including elements with mouse left button.
To select additional element, click the element with mouse left button and Shift key.
To select additional multiple elements, drag an area including elements with mouse left button and Shift key.

Move Views

You can move selected views by Ctrl+Arrow keys (Cmd+Arrow). It moves selected views as grid size. You can move as 1-pixel by Ctrl+Alt+Arrow (Cmd+Option+Arrow).

Zoom In and Out

To zoom in the diagram, press Ctrl++ (Cmd++) or select View | Zoom In in Menu Bar.
To zoom out the diagram, press Ctrl+- (Cmd+-) or select View | Zoom Out in Menu Bar.
To set zoom level to actual size, press Ctrl+0 (Cmd+0) or select View | Actual Size in Menu Bar.
You can also zoom in-and-out using mouse wheel with Ctrl or Cmd key.
You can check the current zoom level in StatusBar.