Enable connector splitting
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\visio\application Value name: allowshapesplitting
Enabled: allowshapesplitting = 1
Disabled: allowshapesplitting = 0
Description
When you place a shape on the line of a connector, it splits and each piece becomes a separate connector glued to the shape. Not all drawing types support connector splitting.