I've never been in a modern megane, but from a lag perspective, that side of the panel usually has the voice activation switch and the traction control. Have you got those? My GT has traction but no voice and a space where the non xenon light leveling switch goes (mine has xenons too).
Thanx bigiainw 1 day late I had a bright idea, I took a look in the owners handbook
Head light adjustment : Mine does have this.
Instrument Light dimmer : Mine does have this.
Cruise and speed limit switch :Mine does have this.
Traction control switch Yes Mine does have this.
Electric locking of rear windows / doors NO NOT There
Mine does have the latter but its by the drivers window control.
Mine doesn't have any voice activation other than that which sits in the front passenger seat, altho being a Renault non standard fit, TBH I completely ignore that now.