Keyboard/Mouse combination

Effect

Alt + Drag handles

Changes the size regardless of the grid scale set.

Ctrl + Left mouse button

Enables you to include individual model items in the selection or remove them from the selection.

Ctrl + Left mouse button (symbol selected in the modeling toolbar)

Enables you to place several objects of the selected type one after the other.

Ctrl + Alt + Drag item handles

Changes the size proportionally; the side opposite the handle in use is frozen.

Ctrl + Drag handles

Changes the size while preserving a fixed center point in the object.

Ctrl + Shift + Drag handles

Changes the size proportionally while preserving a fixed center point in the object.

Alt + Move selected objects with the left mouse button

Moves selected objects in the corresponding direction regardless of the grid.

Ctrl + Move selected objects with the left mouse button

Creates an occurrence copy.

Shift + Move selected objects with the left mouse button

Moves selected objects in the corresponding direction by increments of one gridline.

Ctrl + Scroll the mouse wheel

Reduces (scrolling up) or enlarges (scrolling down) the zoom factor of the model.