These are the best free options from font awesome for opening the TOC:

This is the best option for opening the menu bar:

Contiem Connect

Team Working & Collaboration

 Source Control Integration

HelpStudio integrates with Team Foundation Server, Subversion, Visual SourceSafe and Vault for version control, access control and collaboration functionality.

Info bars at the top of each edit window notify you if a project element is not currently checked out and provide a quick and easy way to check out for edit. Common edit operations (such as Spell Check or Find and Replace) provide automatic Check Out - Check In functionality to make the Source Control functionality as streamlined as possible.

 Project Task Management

Create and manage outstanding tasks, associated with a particular Topic if required. Use task statuses to track completion of outstanding tasks.