This is following a suggestion from
Gio710 needing more discussion.
Replacing tabs with spaces: replace one tab with n spaces where "n" in a number filling the space until the next tab stop, with configurable tab spacing of 4, 8, etc.
For example, with "`t" representing a tab and tab spacing of 8:
`t1`t2`t3
........1.......2......3
ABCD`t1`t2AB`t3
ABCD....1.......2AB....3
The same exercice must be done in a future reply for the opposite: replacing spaces with tabs.