X Axis mirror (Armature)


I’ve just made an armature and am now wanting to do the legs. After finally finding x-axis mirror in the toolbar (it looks so lonely there!). All the bones x axis are pointing down (?), so i’ve recalculated roll to z axis to up (ctrl + n), which provided no change. I even tried to cursor (no sure about that one, never used before).

Any ideas please?

EDIT: Concerning 2.54

Don’t ask me what happened on that one, I re-did afresh and all cool for school…?