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If the imported OBJ file contains any polygon, material or smoothing groups, then these will be listed in alphabetical order under the Groups panel. One of more groups can then be selected in the list, and the polys that belong to those groups are marked.
- Detach
- All marked polys are detached, exactly as if you had moved the mouse pointer over them and typed the Enter hotkey.
- Select
- If the marked polys have been flattened already, then the Select button will select those shells. This would allow you then for example to move all those shells off to one side for other processing.
- Box
- Again, if the marked polys have been flattened already, then the Box button will gather all of those shells together into a Pack box.
Various methods can be used to select groups in the list:
- LMB
- Selects just that group, deselecting all others. Click'n'drag to select multiple groups.
- Ctrl-LMB
- Toggles that group, leaving all others as they are. Click'n'drag to toggle multiple groups.
- Shift-LMB
- Selects all groups between this and the previous selection.
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