To recombine materials after changes have been made to material grades, use the Recombine Grade command in the Combining Run Results dialog box.

1. In the Combined navigation tree, click the + sign under a material shape to show available material grades.
2. Click a material grade to select it.

   Only the selected material grade is shown.

3. Click the items that you want to recombine to select them.

   To select multiple items, hold down Ctrl.

   To select a range of subsequent items, hold down Shift.

4. Click the Combining Run ribbon tab.
5. On the menu, select Recombine Grade.
6. In the first confirmation dialog box, click Yes to recombine the selected grade.
7. In the second confirmation dialog box, click Yes to save the previous combining run or No to recombine materials without saving the combining run.
   Tip: You can save the combining run to view it later and compare it with another combining run. To do so, click Save Combining Run at the bottom of the Combining Run Results dialog box. No cut lists are generated when you save the combining run.

   To view the results, open the Select Combining Run dialog box by clicking the Combining/Estimating/Production Control ribbon tab and selecting Combine.