Creating a custom menu can be one of the most productive tasks that an AutoCAD user can tackle.  Fortunately, it is not a particularly difficult job if you know AutoCAD reasonably well and can use a text editor, such as Notepad.

Start by creating a new file using Notepad by selecting the Start button, then Programs, then Accessories, then Notepad.

Menu Group
The menugroup acts an identifier for the menu.  It is used to load and unload the menu items. The name of the menugroup may or may not be the same as the name of the file. The *** indicates a menu section. On the first line of the file type:

***MENUGROUP=MYMENU

Pop Menu
A menu section labeled POP identifies a pull down menu. On the next line type:

***POP1

Menu Bar
The line following a POP section becomes the menu bar text and is enclosed in brackets. On the next line type:

[My Tools]

Menu Items
Menu items follow the menu bar text and are enclosed in brackets as well.  The actual operation to be performed when the menu item is select is displayed to the right of the brackets. Type the following lines:

[Fillets]
[1/16]^c^cfilletrad 0.0625 fillet
[ 1/8]^c^cfilletrad 0.125 fillet
[ 1/4]^c^cfilletrad 0.25 fillet

The file should look like this:

Saving the File
Select Save As… from the File menu. Create a new folder named Local. Save the file as MYMENU.MNU to the C:\Local folder and close the window.

Loading the Menu
Begin AutoCAD.

Select Tools>Customize Menus... from the menu bar.

Select the Browse button.  Make sure Menu Template (*.mnu) is selected in the File of Type pop-up. Use the Look in pop up to locate the C:\LOCAL folder.