Can I manage versions of tightly related documents?
Example: I have a special content called Proposal made of a User Specifications, a Software Spec. and a DB Spec. document. All three have a separate life and are edited in different versions but at some point also the Proposal is versioned and the version consists in a coherent set of versions of the three documents (example: User Spec v0.3, Software Spec v0.7, DB Spec v0.4). Can I store these Proposals has a whole, retrieve them or rollback to them later?
Yes, it is possible implementing the custom type Proposal as folderish. CMFEditions fully supports versioning of trees and composable objects.