MNU Documentation
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Cool menu key program by John Paul Morrison

This is a very simple program, but also very useful. It uses (and
includes) Rick Grevelle's TDIR program to extend the menu system of the
HP48. Rick's TDI program lets you define custom menus with sub menus in
them, just like when you press the MATH key, you get a bunch of sub-menus
to pick. I haven't added too much, but the functionality is improved. Now
you can define a key for this program, and even during edit mode, you can
hit your user key (in USR mode) and the program will run, and bring up a
nifty menu that you can define for yourself.

To use: download this directory. To be useful, move these programs into your 
home directory. RCL MKEY onto the stack, and ASN (assign) it to a key. Since
I don't have a printer, the key left-shift math or blue-shift math is very
convenient, but any other unused key will do.

After you assign the key, you can PURGE MKEY, or keep it around for back-up.
When you press the assigned key in USR mode, it will recall the list MNU,
and show the menu/submenus.

MNU and TDIR must be in the path.
I have included a sample menu, you can remove the bits that aren't useful.
Be sure to follow the syntax (it is similar to the CST menu format) if you
don't you will get very wierd menus (DON'T press the menus if it looks
weird!, just re-edit the MNU list to see what you did wrong)
One very handy sub-menu I have pre-defined for you is a non-keyboard
CHARACTER sub-menu. There are many characters in the character set that you
can't enter with a simlpe key-stroke (especially when you are editing a
string). This sub-menu defines all the keys that are not available on the
keyboard. Just press the key you defined, press the CHAR sub menu, and then
you can enter any of these weird characters very easily!

I have tested this thoroughly, but since it uses mostly undocumented
features of the HP48, I won't gaurantee the program.