HP 48g Graphing Calculator - Manual (Page 429)

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Customizing Menus
A custom menu is a menu that you create. It can contain menu labels
for operations, commands, and other objects that you create or group
together for your own convenience.
A custom menu is defined by the contents of a reserved variable
named CST. So, the way to create a custom menu involves creating a
variable CST that contains the objects you want in your menu.
To create and display a custom fCST) menu:
1. Enter a list containing the objects you want in the menu. (The
different object types serve different purposes.)
2. Press f^iMODES] M E H U M E N U .
To display the current C S T menu:
■ Press (CST).
Objects in the CST menu usually have the same functionality they do
in built-in menus:
■ Names. Names behave like \"AR menu keys. Thus, if ABC is a
variable name, FlBC evaluates ABC, & FiE5C recalls its
contents, and SD fllsC stores new contents in ABC. Also, the
menu label for the name of a directory has a bar over the left corner
of the label—pressing the menu key switches to that directory.
B Units. Unit objects act like UNITS Catalog entries. For example,
they have their left-shifted conversion capability.
■ Strings. String objects echo the contents of the string, like a typing
aid.
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Customizing the HP 48 30-1