Apple Newton Connection Utilities (for Macintosh) - Manual (Page 39)

4 Begin typing on your computer’s keyboard.
The text you type appears at the insertion point on your Newton device.
You can use all standard alphabetic and numeric keys on your keyboard
to enter information on your Newton device. You can also use the Tab and
Return keys to move between text entry areas. Special keys, such as F1,
are not supported.
During a keyboard session, characters appear on your Newton device only
when the Newton Connection Utilities window is active on your computer.
If another window is active, characters you type appear on your computer
and not on your Newton device.
39 Using Your Computer’s Keyboard
Characters you type on your computer’s
keyboard appear at the insertion point.
Press the Tab or Return key to move to
a new text entry area.