Mouse chording

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Mouse chording is the capability of performing actions when multiple mouse buttons are held down, much like a chorded keyboard and similar to mouse gestures.

One common application of mouse chording, called rocker navigation, is found in Opera and in mouse gesture extensions for Mozilla Firefox. Rocker navigation typically involves the following two mouse chords:

• Hold the left button and click the right button to move forward in the browser's history.
• Hold the right button and click the left button to move backward in the browser's history.

The operating systems Plan 9 and Oberon and the acme development environment make heavy use of mouse chording. OS/2 Presentation Manager can also use chording to copy and paste text using two buttons however Common User Access key combinations are more frequently used.