To display total Area in a grouped room schedule, what needs to be done?

To display the total area in a grouped room schedule, the appropriate action is to set the Area parameter to calculate totals. This is because the functionality to aggregate values, such as the area of rooms, relies on the properties defined within the schedule. By specifying that the Area parameter should calculate totals, Revit will automatically sum up the areas of all the rooms included in the schedule grouping, thereby providing the user with the total area information they require directly within the schedule.

In Revit, rooms are typically grouped in schedules based on specific criteria, and the calculations for such aggregated data need to explicitly indicate which parameters should be totaled. By enabling the totals for the Area parameter, you ensure that every room included in the grouping contributes its area to the final computed total shown in the schedule, streamlining reporting and presentation tasks in your architectural design workflow.