To specify the code checking or design commands to be used for the aluminum design operation, use the following procedure.

1. On the Aluminum Design - Whole Structure dialog, click Commands. The Design Commands dialog opens.
2. To perform a design action, select one of the following options (as they are available for the code selection):

   To…	Select…
   check the capacity of the current member sizes	the CHECK CODE tab
   select a member size based on the last analysis results	the SELECT tab

3. Click Add.
4. Click Close.
5. Assign the design commands to the appropriate members.