LibreOffice Draw: How to add or delete glue points on any shape and connect two shapes with a connector line?

• Open LibreOffice Draw program.
• Select the rectangle shape from shape toolbar at the bottom of drawing page.
• Click a point and drag-and-release to another point on the drawing page to draw a rectangle.
• Select the "Glue Points" icon from the shape toolbar. This will open Gluepoints toolbar.
• On the Gluepoints toolbar, select "Insert Glue Point" icon.
• Click on the just drawn rectangle shape to select it.
• Click a few locations around the rectangle boundary to add glue points.
• To delete a glue point, click on the glue point and then hit the delete key on your keyboard.
• Draw second rectangle.
• Select Connector icon from the shape toolbar.
• Click a glue point on the first rectangle and drag-and-release to other glue point on the second rectangle to connect both shapes.