Mathematica Tutorial: Notebooks And Documents - Wolfram Research

22 Notebooks and DocumentsThe levels lower in the hierarchy inherit their options from the level immediately above them.For example, if a notebook has the option Editable set to True, by default all cells in thenotebook will be editable.You can, however, override the inherited value of an option by explicitly changing its value. Forexample, if you do not want a particular cell in your notebook to be editable, you can select thecell and set Editable to False. This inheritance property of options provides you with a greatdeal of control over the behavior of the front end, since you can set any option to have differentvalues at each level, as required.Note: At each level, only the options that can be set at that level are listed in the Option Inspector.All other options appear dimmed, indicating that they cannot be changed unless you go toa higher or lower level.Searching for an OptionTo search for a specific option, begin typing its name in the text field. The Option Inspectorgoes to the first matching option. Press Enter to go to the next matching item on the list. (OnMacintosh, the Option Inspector displays all matching options at once).Each line in the list of options gives the option name followed by its current value. You canchange the option's value by choosing from the popup menu next to the option setting, or byselecting the option and clicking the value, typing over it, and pressing Enter.When you start Mathematica for the first time, the values of all the options are set to theirdefault values. Each time you modify one of the options, a symbol appears next to it, indicatingthat the value has been changed. Clicking the symbol resets the option to its default value.