A connector can be an arrow or a line. Connectors can be used to join objects — shapes, text boxes, and sticky notes — together or on their own as simple arrows and lines.
Add a connector by selecting the connector icon on your toolbar, then click and drag it to your desired length.
Resize a connector by selecting and dragging its endpoints.
Manipulate a connector's angles or curves by clicking and dragging the midpoints on the connector.
Connect objects by selecting the endpoint of a connector and dragging and dropping it to a connection point on an object's border. The objects will stay connected even if you move them later.