Design Exploration > Using Checkpoints > About Activating a Checkpoint
  
About Activating a Checkpoint
When you activate a checkpoint, you return to the models in session at that point in the Design Exploration session. You can perform the following operations on an active checkpoint:
Make additional changes and add a new checkpoint to create a new branch.
View changes between the active checkpoint and other checkpoints, including the pre-modified checkpoint.
Run a report.