Interface

Here you find a description of each option in the addon. Usually you need to tweak them for best results when wrapping complex models.

Or maybe you want a simple quickstart.

Interaction enables the mouse interaction with the simulation, when disabled, you cant grab the mesh or create pins.
Pause Halts the simulation temporarily.
Left Mouse / Right Mouse which mouse button to use for grabbing the mesh and creating pins
Mouse Grab size The area of influence when you grab the mesh using the mouse

Start Starts the simulation as a modal operator, while the simulation is running this button changes to "Stop" you can also stop the simulation by pressing ESC
Apply removes the shapekey created by softwrap and applies its shape as default.
Reset removes the shapekey but dont apply the shape, essentially reverting the original shapekey
Delete Pins removes all pins used by the selected source mesh
Bending Distance the distance in edges for bending springs to be created, the higher this value the less flexible the simulation gets.

Mirror which axis to mirror the source mesh, the object origin is used as mirror center

Structural Stiffness the Stiffness of the direct links between vertices, the higher the value, the less stretchy the simulation is.
Shear Stiffness
Resistance to a kind of force that distorts polygons known as Shear.
Bending Stiffness
Resistance to foces that bend the mesh.
Damping
Dampen the simulation to prevent stability issues, higher values makes the mesh move slower.

Smoothing Plain smoothing applied the mesh each frame, similar to blender's smooth modifier but dynamic.
Quad Smooth A special kind of smoothing that applies forces to restore the original shape of the quads.
Topologic Smoothing
A smoothing mode that is less aggressive and doesn't shrink the mesh, it uses the edge flow as guidance for its smoothing and applies forces to restore the volume.

Snapping Force Applies a force to attract the source mesh to the target mesh.
Snapping group Vertex group to mask which vertices should be affected by snapping force.
Simulation group Vertex group to freezes the vertices.

Max Scaling maximum allowed plastic deformation scaling for edges.
Min Scaling minimum allowed plastic deformation scaling for edges.
Scale Plasticity how much to permanently deform the mesh after its stretched or compressed
Scale Restoration How much to restore the original length of the edges when its not under stress

Simulation steps How many steps to run on each frame, this doesn't affect the movement speed but affects performance and Stiffness.
Snapping Quality The Quality of the snapping force.