[EDIT: I changed the title to better reflect what I need.
Previous title: “How can I use a shape key to move a mesh along a curve?”]
The basis key should be the mesh (attarched to a curve via Clamp To constraint) at the beginning of the curve and the 1st key at the end.
Is this possible?
*if I do this, nothing happens when I change the key value.
Obviously, the position of the mesh has to be controlled along the curve in someway.