FASTER SLOW MODE (ZX81)
by GW Hewitt, Edinburgh
from Your Computer (April 1982), page 79

If, like me, you like to type in programs in SLOW mode, you will have found
that it can be annoying when adding lines to a long program to have to wait
while the computer writes the entire screen every time. It is especially
bad if the line is a long PRINT or REM line.

This small program can be temporarily stored near the start of the program
using a few spare lines. When one has a screen full of lines, type GOTO
(first program line). Answer the prompt with the last line you have entered
and it will return you to that line with an empty screen below. It also
Pokes the listing-system variable to ensure that every relist after that
will return to your chosen line.
