To use an estimate version
The estimate versions are defined using structural elements. A structure can be an imported activity structure, element structure, cost component structure, or the related extensions. These structures are imported from an existing project. You can also link a user-defined structure to an estimate version. In case, the project-structure data for the estimate version is not defined, you can use the estimate version without a linked structure.
You can create an estimate version using the Estimate Versions (tpest1100m000) session: