Prompt

Pauses the simulation and displays a message and input field. The value entered is then assigned to the designated variable or attribute. To have PROMPT present a menu, specify one or more choices as in the second syntax example above. One use of PROMPT is to give the user the option to change the operation time represented by a variable during a simulation.

Components

String The message to be displayed. This expression should give the user information about what value is expected.
Value The attribute or variable that the user's input will be assigned to. If the attribute or variable already contains a value, that value will be displayed in the prompt.