Selecting

To single select a diagram element:

1. Activate the Selection Tool , if it wasn't already.
2. Click on the desired diagram element.
   • If the element is a class or interface, clicking in its name compartment will display a dashed border around the name.
     

To select multiple diagram elements:

1. Activate the Selection Tool , if it wasn't already.
2. Hold down Ctrl and click on the desired diagram elements.

Alternatively, you can select diagram elements by clicking somewhere in the empty space of the diagram drawing area and dragging over the elements. Any element enclosed on the dashed line will be selected.

To select all diagram elements, either:

• invoke Edit | Select All
  or.
• right-click on the diagram and invoke Select All from the pop up menu.
  
  or
• press Ctrl + A.

To deselect any selected diagram elements, click somewhere in the empty space of the diagram drawing area, or press Escape.

To learn how to navigate and select in the case of the attribute and operation compartments, see "Compartments Navigation and Selection".

When an element is selected its properties will be displayed in the Properties panel.

Moving

1. Activate the Selection Tool , if it wasn't already.
2. Select the desired element(s) as described previously.
3. Click on the selection and drag toward the new desired position.

Resizing

1. Activate the Selection Tool , if it wasn't already.
2. Select the desired element as described previously.
3. Click and drag the blue circle handle.
   

Adding edge waypoints

1. Activate the Selection Tool , if it wasn't already.
2. Select an edge.
   
3. Click on the edge where you want to add the new waypoint and drag perpendicular to the edge.
   
4. Release the mouse and a new waypoint will be added.

Removing edge waypoints

1. Activate the Selection Tool , if it wasn't already.
2. Select an edge.
   
3. Click on the waypoint and drag it to form a straight line with its two neighbouring waypoints.
   
4. Release the mouse and the bend will be removed.
   

Snap to Grid

If this feature is turned on then diagram nodes will snap to the grid when moved.

To activate this feature:

1. Open a diagram in the editor.
2. Either:
   • Invoke View | Snap to Grid
     or
   • Right-click on the diagram and invoke Snap to Grid from the context pop up menu.

Align Diagram Nodes

Use this feature to align selected diagram nodes along the vertical or horizontal axis.

To align:

1. Open a diagram in the editor.
2. Select the nodes to align (nodes will align with regards to the first seleted node).
3. Either:
   • Invoke View | Align
     or
   • Right-click on one of the selected nodes and invoke Align from the context pop up menu.
4. Choose one of the alignments.
   

Arrange Diagram Nodes

Diagram nodes are stacked hierarchically on an imaginary Z-axis in such a way that a node closer to the front of the stack will hide a node closer to the back of the stack if they overlap.

To move a node position within the stack:

1. Open a diagram in the editor.
2. Select the node to arrange.
3. Either:
   • Invoke View | Arrange
     or
   • Right-click on the selected node and invoke Arrange from the context pop up menu.
4. Choose one of the arrangements.
   

Bring to Front will move the node to the front of the stack.
Bring Forward will move the node one position closer to the front of the stack.
Send Backward will move the node one position closer to the back of the stack.
Send to Back will move the node to the back of the stack.