One of the most powerful tools in Kig are the menus that you can enter by right-clicking on an object, or on some empty space in the document. You can use them to give objects names, change their colors and line styles, and lots of other interesting things.

You can construct new points without using the menu or the toolbar, simply clicking somewhere on the Kig document with the middle mouse button.

Kig can open several file formats: its files (.kig files), KGeo files, KSeg files, and, partially, Dr. Geo and Cabri™ files.

Kig has more than 40 objects and 10 transformations you can construct and use in your documents: open the Objects menu to see them all.

You can use the selected objects to start the construction of an object which requires the selected objects as arguments. For example, if you have two points selected, you can choose Start->Circle by Three Points from the popup menu to start constructing a circle by three points.

Kig can extends its object set using external macros. You can find some interesting macro on Kig website: http://edu.kde.org/kig.

If you have more than one object under the mouse, and you want to select any of them, you can click with the left mouse button, while holding the Shift key, to get a list of the objects under the mouse cursor which you can then select from.