When you clone a selected path, Microsoft Expression Design creates a new path that looks identical to the original, but it's not actually a duplicate.
A clone is a special kind of object that is based on an original, master path, but it does not have anchor points. Its structure is based on the shape of the master path, and when you change the master path's anchor points the clone's shape is also updated.
However, a clone path can have its own stroke and fill attributes and can be transformed independently of its master path. For example, you could make five clones of a single object and each could have a different stroke, be scaled and rotated differently, and have different effects applied to it. But when you change the shape of the master path, that change would also occur in all the clones.
After drawing a path (upper left) and creating a clone of it, you can apply a different stroke, fill, or effect to the clone (upper right). When you change the path shape of the master path, the clone changes, too (bottom).
To clone a path
Select the path you want to be your master path.
On the Edit menu, click Clone.
Note that you cannot make a clone of a text object, just individual paths, shapes, or groups of paths. (You could convert the text object to paths, but the text would no longer be editable.)
If you have created one or more clones, you may have to identify the master path.
To identify the master path
Select a clone object.
On the Select menu, click Select Master.
You may want to break the link from a cloned path to the master.
To convert a clone
Select the object you want to make independent.
On the Object menu, click Convert Object to Path.
When you delete a master path, its clones remain. In that case, one clone is always converted to a regular path. If there is more than one clone, the other clones remain clones, and the clone that has been converted to a regular path becomes the master path for those clones.