*SetSystemNumber()
Sets the unique integer associated with a system.
Syntax
*SetSystemNumber(system_name, system_num)
    Arguments
- system_name
 - The variable name of an existing system.
 - system_num
 - The integer identifier to be assigned to system_name .
 
Example
*SetSystemNumber(sys_steering, 53)
    Context
Comments
Beginning at one, MotionView incrementally assigns numbers to all systems in a model. These numbers are used to construct solver ID numbers. The *SetSystemNumber() can be used to assign an integer value to a particular system, rather than use the value generated by MotionView.