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    Functions Menu Select:

    select obj from objID
      key obj-ID's (separeted with blanks) - eg 'P20 S21'
      - objects will be hilieted and
      - objects will be added to group;
        (eg file only group-objects with Group/save Group => File)

      Clear hilite and group with Esc-key.

    Select group of objects with box:
      press Ctrl-key and left mouse-button, keep both pressed, move mouse ..