Open up the Pattern panel if you want to save the current UV layout into a DXF or EPS file. These files could then be used to cut out a pattern on flat material for the manufacture of the original 3D shape.
Save DXF
Click to create a DXF file; a file selection windows pops up, where you can set the file's name and its location. The scale of the exported polylines matches those of the imported mesh, and so any manufactured shape should be accurately sized. Tick Outline if you only want the shell boundary outlines to be saved out.
Save EPS
Click to create an EPS file; a file selection windows pops up, where you can set the file's name and its location. Again, tick Outline if you only want the shell boundaries. Crop EPS[more words here]
Show Flattened Stats
If ticked, shows the real world dimensions of each flattened shell and the UV red square.
Save Morph Target OBJs
Use this button to save the current mesh into two OBJ files; the first will be the 3D geometry, and the second file is the flattened geometry at the same scale. These two meshes can be morphed between to animate the flattening process.
Subdivide
Used to split each polygon in the mesh into a number of smaller quads; this may be required on some meshes to get a more accurate flattened shape.
