The .ini file setting [DISPLAY]INCREMENTS can be used to override
the default. Its value can contain decimal numbers (e.g., 0.1000) or
fractional numbers (e.g., 1/16), optionally followed by a unit (one of
'cm', 'mm', 'um', 'inch', 'in', or 'mil'). If a unit is not specified
the machine's native unit is assumed. For machines configured as metric,
a good setting might be
INCREMENTS = 1 mm, 0.1mm, 0.01mm, 1 um
For a machine configured as imperial (inches), a good setting might be
INCREMENTS = 1/8 inch, .1 inch, 1/16 inch, 1/32 inch, 10 mil, 1 mil, 0.1 mil