You are thinking about a D2 type of mapping for a VT100 terminal.
Unfortunately, a VT100 is missing the special extra keys like :-

		      +------+------+------+
		      |Find  |Insert|Re-   |
		      |      |Here  |Move  |
		      +------+-------------+
		      |Select|Prev  |Next  |
		      |      |Screen|Screen|
		      +------+------+------+

This makes it not such a good idea to use this mapping.
However, you may wish to insist on this (your terminal may be a real
VT200 or VT300 pretending to be simply a VT100). If you do insist then I
shall change you to be a terminal of type VT200.
