A design variable can be used in place of a scalar value in a property dialog of an entity
as shown in the figure below. The static friction coefficient is defined as the
bbb design variable. If the value of design variable is changed,
the friction coefficient will be changed to the value. The operation steps to put a
design variable into the dynamic friction coefficient are explained in the table
below.
Figure 8.23: Operation steps to set a Design Variable
| Step | Operation |
| 1st step | Click the  button to
activate the design variable picker  . |
| 2nd step | Click the  button to
open the list of design variables. |
| 3rd step | Select one of design variables. The list will then be automatically closed and the value will be set as the selected design variable. |
