How Do I Backup a Project So I Reuse It?

I want to know if I can backup a project and the sub-tiers so I can reusing again in a new project and just change the necessary data items only?

How can I do this?

You don't have to back it up. You can just right click on a project and the select Modify Project --> Duplicate. This will create a copy of that project.

I know it was on Sven's to do list to add the ability to duplicate a whole project tree, but I have not heard that it has been done yet. Until this it done, you will have to duplicate each project and then place the new ones in the proper tree structure.