4Keeps for Visio Professional - Version 2.2 Turn your Visio diagrams into power tools for information modeling and team communication. 4Keeps V2.2 adds an integrated repository to Visio Professional, the ability to reverse or forward engineer relational databases, model inspection with hyperlinked error correction, presentation quality documentation with embedded graphics in Word, HTML, and Help formats, and support for 10 of the leading methodology styles including UML.