Morphle is an add-on that generates a new object containing shape keys based on the vertex positions of multiple selected meshes. Activating the tool adds a dedicated execution button to the Object Properties panel.

When run, the add-on creates a single object at the World Origin, utilizing the mesh of the selected object with the highest vertex count as its base. It automatically populates this new object with shape keys corresponding to each originally selected mesh, enabling direct interpolation between their vertex positions. The resulting geometry can be further modified or used to emit particles and instance child objects across its transitioning vertices.