Specifying the generation order of model, package, class or data type members (Ada code)
1. Open the Property Pages of the Model, Package, Class or Data Type for which you want to specify the generation order of its members.
2. Click the Items tab.
3. In the Show Associated list, select Priority Generation Items.
4. Click the Link button.
Modeler opens the Links Editor.
5. In the left pane, select the appropriate folder, Package or item to display the items you want to order in the middle pane.
6. In the middle or right pane, select the check boxes associated with the items you want to order.
7. In the middle or right pane, clear the check boxes associated with the items you want to un-apply.
8. Click OK.
9. On the Items tab, order the items as required by selecting items in the list and using the Move Up and Move Down buttons.
When generating the Model, Package, Class or Data Type, ACS will generate the items you ordered first in the order you specified, and then generate any other members in their default order.
Link button.
Move Up and 
Move Down buttons.