This is a collection of points I Have already made in the documentation elsewhere.
The First (top) string Gadget is the Actual HotKey,
The string gadget below is the Description that appears next to the item on the menu.
If you want to use an Amiga Key hotkey (like all the Workbench Menu's) then don't use the Hotkey Gadgets instead put the Hotkey inside two square brackets before the Menu item's name.
[X]My Menu Item
If you want to pass the Icon's you have selected to the Menu item then add two square brackets to the command in the place that the arguments should go.
For a WB Command this is at the end, for a CLI Command it depends on the command, you should understand if you know how to use the command form the CLI.
C:ged [] config WBEDIT.CONFIG
art:dpaint []
When you drop an icon onto the TD Prefs2 window the [] are automatically added at the end. You should remove them if you do not wish to pass parameters to the command.
When you delete in ToolsPrefs you delete only the item you have selected. it is important to remember that when you delete in TD Prefs2 you delete the Item and ALL items connected to the one you delete.
That is if you delete your Programs Menu, You delete all the Menu-items, Sub-menus and Commands under that menu, Similarly if you delete your Art Sub-Menu you delete all the commands under that menu. So be careful what you delete.