Added options.
pup_block = [\
('Apply Modifiers', EXPORT_APPLY_MODIFIERS, 'Use transformed mesh data from each object. May break vert order for morph targets.'),\
('Selection Only', EXPORT_SEL_ONLY, 'Only export objects in visible selection.'),\
('Edges', EXPORT_EDGES, 'Edges not connected to faces.'),\
('Normals', EXPORT_NORMALS, 'Export vertex normal data (Ignored on import).'),\
('Materials', EXPORT_MTL, 'Write a seperate MTL file with the OBJ.'),\
('All Scenes', EXPORT_ALL_SCENES, 'Each scene as a seperate OBJ file.'),\
('Animation', EXPORT_ANIMATION, 'Each frame as a seperate OBJ file.'),\
('Copy Images', EXPORT_COPY_IMAGES, 'Copy image files to the export directory, never everwrite.'),\
]
Obj import was updated to import edges (2 vert faces), will update some more later.