Description:
Default control keys:

'Myself' is the current vehicle
RIGHT-CTRL F = Toggle 'FollowMe' on/off
RIGHT-CTRL H = Wait/Resume
RIGHT-CTRL W/S = Distance increase/decrease
RIGHT-CTRL A/D = Offset left/right adjust
RIGHT-CTRL X = Offset reset or hold for invert

'Behind' the followed vehicle
RIGHT-SHIFT F = Disengage 'FollowMe'
RIGHT-SHIFT H = Wait/Resume
RIGHT-SHIFT W/S = Distance increase/decrease
RIGHT-SHIFT A/D = Offset left/right adjust
RIGHT-SHIFT X = Offset reset or hold for invert

Credits:
Decker_MMIV (DCK)