Hi Ana,
Thank you for your continued interest in Syncfusion products,
The following sample demonstrates creating a Custom Link type that uses a special directed Orthogonal Line shape. It can be done by inheriting the OrthogonalConnector
Sample:
http://websamples.syncfusion.com/samples/Diagram.Windows/F63107/main.htmKindly take a look and let me know if this helps.
Regards,
Ajish.