Selection Modes

The Selection Toolbar is the vertical toolbar located on the left side of the screen (as shown in the following image). This toolbar lets you select nodes, beams, footings, slabs etc. in model views, and is only active when a model view is active.

Click on image to enlarge it

Some of the tools are for one-time applications, such as Select All. Other tools, such as Box Select, place you in a selection mode that remains active until you cancel it. The current mode is indicated by the mouse pointer and by the state of the selection button. While in a selection mode, the button stays depressed until you click it again, choose another button, or press the ESC key. You can have more than one model view open and be in different modes in each view.

Note:

There are other types of graphic modes, such as editing and viewing (zooming) modes. The viewing mode overrides the selection mode, which overrides the editing mode. This lets you alter the selected state while you are editing the model. You are returned to the current editing mode when you terminate a selection mode.
To cancel a selection mode press the ESC key or click the right mouse button.

Select All and Unselect All

The Select All and Unselect All tools let you select, or unselect, all of the active nodes, beams, footings and slabs in the model.

Box Select and Unselect Modes

The Box Select and Box Unselect tools let you draw a box around the items that you wish to select or unselect. When selecting members by boxing, dragging your mouse from left to right will select members completely encompassed within the selection. This selection style is denoted by the solid blue line type of the selection box.

Alternatively, dragging your mouse from right to left will select all elements that you box through. This selection style is denoted with a dashed blue line type.

Polygon Select and Unselect

The Polygon Select and Polygon Unselect tools let you draw a polygon around the items that you wish to select or unselect. Beams and slabs must be entirely within the polygon in order for them to be affected.

Line Select and Unselect

The Line Select and Line Unselect tools let you draw a line through the items that you wish to select or unselect. Any element the line crosses will be affected. This is useful when choosing items between other items.