What limitation exists regarding merging revision differences in AtomSphere?

The correct choice highlights that there is no automated way to merge differences in AtomSphere. This means that any changes made to different versions or revisions of the same process within AtomSphere cannot be reconciled through an automated system. The user must manually evaluate the differences and then decide how to incorporate those changes into a final version.

This limitation emphasizes the importance of thorough manual review and understanding of revisions, as developers need to ensure that they handle the integration of changes carefully without losing valuable modifications made in previous versions. Such an approach can be time-consuming and requires a good grasp of the data and processes involved to effectively implement the desired changes without error.

The other options point out various aspects of user experience or documentation rather than the core limitation related to merging differences, but they do not accurately convey the essence of the limitation regarding automation in this context.