If you are in the case of having to move the contour labels from one surface to another or move /copy across drawings the answer is that there is no command to do that, but with a little bit of work it can be done.
What does this involve:
1. In the case of moving the contours labels from one surface to another surface in the same file you will need to do the following:
Select all the labels that need to be moved
Change the properties for the contour labels to display the contour label line, by changing it in the Properties (Ctrl+1)
Explode the labels once to get to a block state and once more to get to the line state.
Create contour labels by selecting the desired surface, select multiple and then define by objects, the objects being the lines from the previous labels.
2. In the case of moving the contour labels from one drawing to another.
- Select all the labels that need to be moved
- Change the properties for the contour labels to display the contour label line, by changing it in the Properties (Ctrl+1)
- Explode the labels once to get to a block state and once more to get to the line state.
- Copy with base point the labels from the drawing you work on to the one you want the labels to be on.
- In the new drawing create contour labels by selecting the desired surface, select multiple and then define by objects and select the lines that were copied.
- If you want to just copy the labels, then don’t save the changes to the drawing you got the labels from. If you want to move them, then delete the objects that were exploded, or don’t save the changes, open the drawing again and delete the labels.

