Genicom GEK 00031B Programmer's Manual page 137

ESC b c n1 n2...n8
NUL
GEK-00029A
Set Vertical Tabs in Channels 0 Through 7: Sets vertical tab stops
in any one of 8 vertical tab channels numbered 0 through 7. This
allows you to set up to 8 different groups of vertical tabs. The list of
tab stops must be terminated by the NUL code. Any line that is not
referenced in the list is cleared by this command. Therefor, the
command sequence ESC b (c) NUL will clear all vertical tab stops
within the channel (c). The parameters (n1), (n2), etc., must be in
ascending order and the limits of the parameter values are 1-255
(decimal).
Vertical tabs are converted to absolute positions as they are set.
There is no automatic linkage between the value of line spacing and
vertical tab positions: subsequent changes in the value for line
spacing will not cause the tab positions to change.
Decimal: 27 98 c n1 n2 ... n8 0
Hex: 1B 62 cH n1H n2H ... n8H 00
BASIC: CHR$(27);"b";CHR$((c));CHR$(n1);CHR$(n2);...;
CHR$(0);
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5000 Series Programmer's Manual