Last bone in a hierarchy is represented as a sphere, instead of an arrow

In blender I can always see the direction of the bone, event if it is a last bone in a hierarchy. But in Umotion all last bones are just spheres appended to the previous bone. That doesn't matter much for a toe bone for example (hierarchy of bones without branching), but if there is a single bone branches from a hierarchy it is impossible to select it in editor, because it's just a sphere on bone path. A picture would illustrate it better:

Can I fix it somehow in the settings? Or if it is not implemented, please consider adding it.. 
Thanks !