Modify: Scale

Description:

Scales entities by a given factor towards a given center.

Procedure:

1. Select the entities you want to scale.

2. Launch this tool.

3. Set the center of the scaling with the mouse or enter a coordinate in the  command line.

4. The scale dialog is displayed where you can enter the scale factor.  
    If you want to scale with two different factors in X and Y direction,   uncheck the button for proportional scaling:  
    You can then enter two different scaling factors for X and Y.  
    If you want to scale the selection by mouse, check the mouse cursor   button:  

5. Click "OK".

6. If you have previously chosen to scale the selection by mouse,  you now have to specify a reference point and a target point for  the scaling operation.