This document provides instructions for working with multiprojects in SIMATIC PCS 7. A multiproject allows grouping of multiple STEP 7 projects and libraries for an automation solution. Projects within a multiproject can be distributed across engineering systems and edited separately while maintaining cross-project relationships. The document outlines how to create and manage multiprojects, including moving projects externally, updating cross-project networking, archiving, and restoring individual projects. It also describes using a multiproject for a training exercise involving external storage of a project and testing with PLCSIM simulation.