You can add text, rectangles and squares, circles and ellipses, marker symbols, polylines, and polygons to graphs. Polylines are continuous lines that have one or more line segments. Polygons are custom shapes that have three or more sides.
Click the graph.
Click the annotation on the Graph Annotation Tools toolbar.
Click on the graph where you want the annotation.
If you are adding a polyline or a polygon, click where you want to put each line endpoint.
When you are done, double-click, or click the select arrow on the toolbar.
To display the Graph Annotation Tools toolbar, choose .
Double-click an annotation shape to change the fill pattern, borders, and fill lines. Double-click annotation text to change the text, font, and alignment. Double-click an annotation line to change the line type, line color, and line size, and to specify an arrow style.
Minitab tracks the location of annotations using a coordinate system. The coordinates can be in data units, which are relative to the graph scales, or figure units, which are relative to the figure region. (Usually, the figure region covers the entire graph.) For example, if you use data units (which is the default), then the annotation adjusts when you change the data region or scale. To change the units, double-click the annotation, then on the Units tab, select Switch coordinate system from data units to figure units.