Using RepG40 with the latest Marlin firmware 2-2-2013.

Is there a feature to set an extruder offset in the latest Marlin release? I see the RepRap X2 MARLIN has the ability to use a M208 command but it is an older vertion.

"M208 T0 X0.00 Y0.00",M208 T1 x20.00 Y10.00"

same as

#define EXTRUDER_OFFSET_X {0.0,20.00}
#define EXTRUDER_OFFSET_Y {0.0, 10.00}

Can I define or can I use the M208 command in the current MARLIN firmware.

If this has not been done. I would like to have this added to the current release of MARLIN.

I would like to use the latest MARLIN firmware.

Thanks

Jeff