Straight Connector

( Ctrl + Shift + 4 )

On the Home tab, in the Basic Tools group, click the arrow under the Connector tool, and then click the Straight Connector Tool.

To create a straight connector you need to point the cursor at any connection point of the shape. The connection point will be highlighted red.

To glue an endpoint of the connector to a connection point on a shape, drag the endpoint to one of the shape's connection points until a red box appears around the connection point.

Adjust Connector

Select a connector.

Drag the control handles or to adjust the path of the connector as you want.

Once you adjust connector, the connector will change its Reroute Mode to Never Reroute.