AT&T 6300 Programmer's Manual page 35

Getting Started
CORRECTING THE CURRENT LINE
All text entered at GWBASIC Command
Level is processed by the Screen Editor. You
can therefore use any of the Special Screen
Editor Keys.
GWBASIC remains at Command Level after
the prompt Ok and until a RUN command is
received.
Character Modification
If you make a mistake while entering a line
then proceed as follows:
1 You discover the error. For example, suppose you have
typed:
RUN "K,PROGR_
when you should have entered
RUN "A:PROGR_
2 Use Cursor-Left, or other cursor movement keys, to move
the cursor to the appropriate position:
RUN
"~,PROGR
3 Type the correct characters over the wrong ones:
RUN "A:PROGR
4 Move the cursor to the end of the line using Cursor Right or
END keys:
RUN "A:PROGR_
5 Continue typing if the line is not finished:
RUN "A:PROGRAMll"_
6 Enter CR to pass the line to GWBASIC. In this case the
specified program is loaded from the diskette inserted in
drive A and run.
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