Align to object?

When I want to move an object along it’s axis I think that resetting the gumboil to ‘align with object’ would make that possible. But it most every case this is not so. I’m no doubt missing something, although it seems to be rather straight forward.

What am I doing wrong now?

This is the item and the menu that shows up for the gumboil.

Hi James - not everything has an inherent plane or axes that the Gumby can align to - polysurfaces do not, for instance, but Extrusion objects do… When there is no axis to align to, the gumball reverts to CPlane alignment to the objects’ bounding box center.