By user request I have created a tool to label existing points in a drawing with the z (elevation) value.
The attached .DLL file does into the 'Draggers' sub-folder.
To use just select some points and click the new button.
Attached also is the configuration window that allows for text height and placement, the number of decimal places to keep as well as tha layer to add the text label to.
If the button doesn't show up after you restart TurboCAD then you will to try the old UI switch trick.
Let me know what you think.