Selection

Entering Select Mode & Single Selection

Press Esc or click the Select toolin the toolbar.

Click on any node or member to select it. The previous selection is cleared.

Box Selection

Since mouse dragging is reserved for 3D navigation (panning and orbiting), you must hold a modifier key to initiate a selection box:

• Hold Shift + Drag: Initiates a selection box.
• Hold Ctrl + Drag: Initiates a selection box.

The direction of the box determines the selection mode:

• Left-to-Right (Window): Selects only objects fully contained within the box.
• Right-to-Left (Crossing): Selects all objects that are either inside or touched by the box.

Selection Shortcuts

Other useful shortcuts:

• Ctrl+A - Select all nodes and members
• Ctrl+I - Invert selection
• Ctrl+R - Restore previous selection
• Escape - Return to Select tool / Cancel active operation

Visibility (Hide/Unhide)

You can temporarily hide selected nodes and members to declutter your view or reach objects hidden behind others.

• Ctrl+H - Hide Selected: Removes currently selected objects from view.
• Ctrl+Shift+H - Show All: Restores visibility to all previously hidden objects.

Note: Hidden objects are excluded from selection operations (like Select All or Invert Selection) and analysis results visualization.

Selection Filtering

The Properties panel shows different options based on what's selected:

• Single node: Position, supports
• Single member: Section, material, node fixity