Calculation scripts in Hyperion Profit and Cost Management (HPCM) are generated and executed by user Point of View (POV) e.g. by Period, , Year, Scenario and Version combination. Therefore, if your model is, for example, a forecast year, you will need to generate and execute 12 calculation scripts (i.e. one for each period). In v11.1.1.x code lines, generation of calculation scripts is done from the user interface. In 11.1.2.x code lines, it is also possible to use web services to automate the run of these calculation scripts.
The previous paragraph is the supported method for generating and executing calculations. However, it is also possible to run user defined scripts on the model. In the same way, it is possible to edit the standard scripts i.e. to create custom user defined scripts. By doing this, it is possible to run 12 periods in a single calculation script execution rather than 12 separate calculation script executions. It is possible to do this if all 12 periods use the same assignments and driver selections. If this is the case, you only need to generate one calculation script, edit it and then execute this script, or scripts, if HPCM generates multiple scripts per stage, for all 12 periods. This requires only some minor customisation of the script.