TerminalSettings.TABDLY (gb.term)
Property TABDLY As Integer
Horizontal tab delay mask.
Values are
Term.TAB0,
Term.TAB1,
Term.TAB2,
Term.TAB3 (or
Term.XTABS.
A value of TAB3, that is, XTABS, expands tabs to spaces (with tab stops every eight columns).