Just from a quick look

1)Last button on the bone tools allows movement entries. Bone properties button.EDIT-> Top tool bar must be in bone mode and selection mode to use the button and the bone must be selected. Also the global transforms in the object menu might help(not sure didn't test)

2)Unclick the bone-create add button -> makes sure top tool bar is in bone mode -> make sure top tool bar is in selection mode (select,tranform,rotate,sacle) -> box select the bone and press delete.

Search the resources for tutorials for info about the things you want to do, I'm just not trying to go flipping through the AUM and resources looking.