How to add custom glue-points in shapes?

Adding a custom glue-point to your shape allows you to connect your line anywhere in the shape. 

Usually when you try to connect two shapes together with a line, the glue-points or the connector-bumps pop up in perfectly aligned places of the shape. That makes things easier, except when you want your line connected to a different place in the shape.

To add custom glue-points in a shape;

• Click on the shape you want to start the connector (line) 
• Click on the ‘Connector’ option in the contextual mini toolbar
• Click on the tip of the connector and drag it to where you want it to connect 
• Hold the connector for 2 seconds in the exact spot you want it to connect - wait for the bump to appear. You can deselect the connector and continue editing