The normalizeAxes plugin for trueSpace will move an object's axes to the origin (0,0,0) and set it's rotation values to zero while leaving the mesh in it's original location.  If the object axes are visible, the scene will have to be manually updated to see the change.
The toggleAllAxes plugin will alternately show or hide all the axes in a scene.  This one does not work properly for skeleton's that have been skinned.
Normalize Axes - note that the axes do not have to be visible to use this tool
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Click this line to download the normalizeAxes.tsx	The source code is available at the bottom of the page.
Show/Hide All Axes - click to show all axes, click again to hide all axes
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Click this line to download the toggleAxes.tsx	The source code is available at the bottom of the page.

Click this line to download the C source code for normalizeAxes

Click this line to download the C source code for toggleAxes