Microsoft Visio 2013 : Creating a New Diagram - Connecting shapes with dynamic connectors - Microsoft PowerPoint, Microsoft Excel, Microsoft Visio, Microsoft Word, Microsoft Access, Microsoft Outlook, Microsoft OneNote, Microsoft InfoPath Tutorials
Chapter 5 - Working With Connectors
Getting the Name of Glued Connection Points - bVisual
Turn off snap and glue in visio online? - Microsoft Community
VISIO】Is it possible the connector from being glued except at the connection point in the figure. - Microsoft Q&A