You are able to select objects and portions of objects through various methods.

Selecting multiple objects

To select multiple objects select each object while holding down the Shift key.
Toggle selections by holding the Ctrl key down while left-clicking on the object, allowing unselected objects to be selected and selected objects to be unselected to and from the selection group.

Multiple objects may also be selected from the 2D views by dragging a selection rectangle around them by holding down the Left mouse button while moving the mouse to draw out a selection rectangle around the objects you wish to select.

Actions may be performed on multiply selected objects by holding the Shift key to perform actions such as moving, rotating, or scaling all selected objects simultaneously.

The 3D Object Selection button on the Home Tab will allow you to change the selection mode of the type of items that may be selected.

The following 3D selection modes allow you to select part of the drawing from the Perspective View window:

• Select Object (Ctrl + Shift + O): Select this option to select whole 3D meshes within the model.
• Select Face (Ctrl + Shift + F): Select this option to select groups of triangles that form a common flat face.
• Select Triangle (Ctrl + Shift + T): Select this option to select individual mesh triangles.
• Select Edge (Ctrl + Shift + E): Select this option to select individual mesh lines.
• Select Vertex (Ctrl + Shift + V): Select this option to select individual mesh vertices.

Once you have a 3D item selected you may perform operations from the right-click context menu. For selected objects you can Delete, Scale, Rotate, Move and Center to the grid origin. Selected faces and triangles can be reversed, deleted and duplicated. Selected lines may be deleted, duplicated and moved, while selected vertices may only be deleted or moved.

When you duplicate a face or triangle the new triangles are attached to the mesh at the same points the original triangles were using a set connecting triangles around the outside edge of the selection. You can use this to extrude a new surface from the mesh.

While in Select Object mode you may Copy and Cut selected objects.
You may Delete any selected item at any time.
You may Paste a copy of the current object from the copy buffer at any time. Pasted objects will be placed at the location next to the original object from which it was copied even if the original object has been moved or deleted.

• Select All (Ctrl + A): While in Select Object mode selects all objects.
• Copy (Ctrl + C): Copy the currently selected objects to the copy buffer.
• Cut (Ctrl + X): Cut the currently selected objects to the copy buffer, removing the currently selected objects from the model.
• Paste (Ctrl + V): Paste the objects from the copy buffer to the model.
• Delete (Delete): Delete the currently selected objects from the model.

2D Views

If you have begun to draw a 2D outline by selecting a 2D Drawing Mode left-clicking within any of the 2D views will select the shape you have begun to draw, and will present you with options for either deleting the shape, or converting the 2D outline into a 3D object.

If you are not currently drawing a 2D outline, left-clicking will select any other object beneath the mouse cursor.

You are able to select many objects simultaneously from within the 2D views by using a selection rectangle. To use a selection rectangle, simply click and hold the Left mouse button within the 2D View, and then drag out the desired rectangle over the objects you wish to select.

If you have more than 1 object selected, hold the Shift key to perform an actions such as moving, rotating, or scaling all selected objects simultaneously.

Statusbar Display

While in the object move, rotate or scaling modes the corresponding values will be displayed on the statusbar at the bottom of the main window. If there is more than one object selected then only the values for one of the objects will be shown. In move mode the position value shown will be the point of selection on that object.