Show Axis instead of Joints in Manual Control Tab

Sorry for this newbie question: How do i change the "Manual Control" tab to show the Axis instead of the joints?
Tried in [DISPLAY] GEOMETRY = XYZ, but that didnt work.
 
 

You have tandem joints/axis so only after homing it will show axis.

Ok, then i probably do not understand homing.
This is a cartesian gantry with XXYZ. The two joints for X cannot move separately. So my thinking was homing should be done for the axis instead of the joints; with only one homing switch for both joints (the axis).

XXYZ must have 2 home switches for X, otherwise it wont work.
To have both X joints with a single home switch, you must use a normal XYZ configuration that outputs X steps on two outputs. This works fine, but can not do gantry squaring if required.