FL_2STEP
{ FDF_5_360 | FL_2STEP | FL_AUTO},
steptrac = (fd->ft->flags & FL_2STEP)? 2: 1;
if (ft.flags & FL_2STEP) {
{ FDF_5_360 | FL_2STEP },
out->flags |= FL_2STEP;
out->flags &= ~FL_2STEP;
if (in.flags & FL_2STEP)