IBM TN5250 manual 2-12, Chapter, 5 describes the functions of the Keyboard Mapping menu

2-12	Chapter 2
	Table 2-5 describes the functions of the Keyboard Mapping menu.
	Table 2-5 Keyboard Mapping Functions
	Function	Description
	Host Function Keys	Lists the host system control keys.
	Cursor Control Keys	Lists the keys that control cursor movement.
	Screen Control Keys	Lists the keys that control the terminal screen.
	Local Function Keys	Lists the local session control keys.
	Text Assist Keys	Lists the keys that control text.
	Key Map Verification	Verifies terminal emulator keys. When invoked, the
		5250 Key Verification menu appears. Enter a key:
		◆ If you entered an alpha numeric key, its
		mapping will appear following 5250 EBCDIC
		Key.
		◆ If you entered a control key, its mapping will
		appear beneath 5250 Key. The key sequence
		you entered will display under Key Cap.
	Save Keyboard	Saves the current key mappings.
	Mapping
	Restore Default	Restores the default key mappings.
	Mapping