By default, HEC-RTS allows only a single program order to be used. If desired, the user can enable the use of multiple program orders (RTS Options Tab). To enable multiple program orders: 

  1. From the HEC-RTS main window, click on the Setup tab, from the Tools menu, click Options. The Options dialog will open, click the RTS Options tab (Figure 1).
    Figure 1 Options Dialog - RTS Options Tab - Advanced Options
  2. On the RTS Options page (Figure 1), Advanced Options is not selected. To enable Multiple Program Orders, select Advanced Options (this also adds the Map folder to the Watershed Tree.
  3. Click OK, the Options dialog (Figure 1) will close, and now you will be able to define multiple program orders for your watershed.

Care must be exercised when using multiple programs orders. When a model alternative is linked to a program for its input information, it remembers the position of the model it is receiving its data from, not the name or program of the specified model alternative. This can lead to potential conflicts if a model alternative is used in two different program orders. The recommended practice when using multiple programs orders is to configure a different model alternative for use in each different program order.