This is possible. The commands would be entered in the console, this can be found on this guide: [guide|22|stepid=486]
To move relative to the current position use the commands:
* G91 ''(Sets the machine to relative mode)''
* G0 X20 ''(move positive 20mm on the X-axis) - This will move at the maximum feedrate of 2500mm/min''
To move to an absolute position in the current work coordinate
* G90 ''(Sets the machine to absolute mode)''
* G0 X20 ''(move to a Work Coordinate of 20mm on the X-axis) - This will move at the maximum feedrate of 2500mm/min''
To move to an absolute position in machine coordinates
* G90 ''(Sets the machine to absolute mode)''
* G53 G0 X20 ''(move to a Work Coordinate of 20mm on the X-axis) - This will move at the maximum feedrate of 2500mm/min''