In order to use alternate preparations you must configure the setting Use alternate preparations?, under the Preparation heading that you will find under the Manufacturing tab in the Settings procedure, either to 0 or 1.
When you register a simulated manufacturing order in MONITOR, it will take the terms that you configure during the Preparation into account. In the Search Form, you can see the standard terms: Quantity, Period (Finish) and Customer code. If you have set terms for a part in the Preparation procedure using any one of these alternatives, and later create a simulation for that part, those terms will be applied. This naturally depends on whether the simulated order falls within the limitations of the term.
The simulated order will thereby be created according to the terms that have been entered in the Search Form. The terms that have been entered throughout the entire structure will be applied to the Quantity and Finish fields. In other words, there will be no breakdown of the Quantity or Period fields for the underlying levels in the structure.
You will find a general description of Alternate preparation in the help function for the Preparation procedure.