If you select two or more adjacent cells that contain different numbers, and drag, the remaining cells are filled with the arithmetic pattern that is recognized in the numbers. The AutoFill function also recognizes customized lists that are defined under <switchinline select="sys"><caseinline select="MAC"><item type="menuitem">%PRODUCTNAME - Preferences</item></caseinline><defaultinline><item type="menuitem">Tools - Options</item></defaultinline></switchinline><item type="menuitem"> - %PRODUCTNAME Calc - Sort Lists</item>.