Use the Number modified objects command to number all parts, assemblies, cast units, and reinforcement that have been created or modified since the last numbering. If this is the first time you run numbering for this model, all objects in the model are new and will therefore be numbered.

1. On the Drawings & reports tab, click Perform numbering > Number modified objects.

   Tekla Structures opens the Numbering preview dialog where you can check the numbering results before assigning position numbers to the objects.

2. If you are not happy with the proposed position numbers, click Reject numbers. Then adjust the model objects and the numbering settings as needed, and start the command again.
3. When you are happy with the proposed position numbers, click Assign numbers.