Your first morph

1. Duplicate SK_MorphStudy and DA_MorphStudy into your own project folder. Assign the copied mesh as the copied data asset's Source Mesh.
2. Open the data asset and choose its source LOD. Start with LOD 0.
3. Add a named entry in the Morph List and select it.
4. Enter Sculpt mode, choose a brush, and make a small visible change. Start with a moderate radius and strength.
5. Capture or update the selected morph from the current sculpt. Vary its preview weight between 0 and 1 and inspect the shape from several angles.
6. Use Apply for the selected target, or the batch action for the desired entries. Check the result message.
7. Save both the MorphBuilder data asset and the skeletal mesh.
8. Reopen the mesh in Unreal's Skeletal Mesh Editor and verify that the saved target name and deformation are present.

A preview weight changes the authoring preview. It does not by itself save a mesh target. Applying an existing name replaces that mesh target's deltas; use a distinct name when you want to keep both versions.