Check Bone Hierarchy
This tool is only available for Armatures. It just checks if the current Armature has a bone hierarchy that is compatible to Secondlife.
Note: The bone hierarchy does not need to be complete. It only needs to have the bone parent/child hierarchy of the included bones equal to the bone hierarchy in Secondlife.
Right after you have called the function, you see the result displayed in the Operator redo panel. This is just a convenient way to get you informed.