When you begin to modify a project file in RoboHelp, the topic file is checked out from version control (if not in use).
Many topics are linked to other topics, or part of the TOC, index, and browse sequences. When you modify a file or change the project structure, RoboHelp automatically checks out all affected, dependent files (if available).
If a project has dependent files, RoboHelp asks to check them out. If some are already checked out, ask users to check them in.
note: Once you’ve added a project to the version control system, you can view file versioning history and properties, as well as differences between the local copy of the file and its checked in version.