Keyboard Layout 

New Keyboard... in the Tuning menu is used to create a new Keyboard. This item displays a Panel for describing the initial tuning and size of the Keyboard. Indicate the first Key, the last Key or interval, and the number of Keys for the Keyboard. Either the first Key or the last Key may be described relative (cents, ratio, or interval) to the other.  If tuning is described by first Key and last Key, the distance between these keys will be divided among number of Keys equally spaced Keys.  If tuning is described by first Key and an interval size, Keys will be tuned equally spaced by that interval, starting at first Key.