Editing > Editing Features > Adding Features > Adding Multipart features--Polygon

Adding Multipart features--Polygon

If you would like to add multipart features referring to the same set of attributes, please select "Start Editing" and target layer and click "Add New Features" and "Sketch tool." Then, you can sketch the first polygon in Map Window, right-click the last vertex, and click "Finish Part." Then, you can sketch another polygon. Repeat the actions until all the polygons are finished. Afterward, right-click the last vertex, click "Finish Sketch." Multipart features are completed.

Similarly, you can use the method described above to create hollow polygons, like the graphs below.