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    Using function MAN:
      Mainfunction MAN (manual).
      All objectcodes will be displayed in a editwindow.
      The codes can be created / modified / deleted with the editor.
      The grafic represetation is displayed immediately in the graficwindow.

    Enable function MAN:
     Select the MAN checkbox.

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    Creating objects:
     Create the codelines in the editwindow,
       Conclusion with RETURN key or right mouse button.
       The line will be worked, resulting objects are displayed.

     A codeline for a graphic object consists of:
       objectname = parameters.   Example point:
       P10 = P(100 100 0)
       Codedefinitions see gCAD3D-Codes

     New object names can be produced with the Alt-key and the object character;
       Alt-P produces the text "P20 =" (line must be empty).
       Further: Alt-L line, Alt-C circle, Alt-S curve etc..

     Associated geometrical objects (points, outlines) can be selected.
      The objectname of the selected object is added in the editwindow.
      No object ("indicate"): the cursorposition at the constructionplane
        is added as a pointobject.

      Parametric definitions for points are produced only in the mode CAD.

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    Modifying / deleting objects:

      Activate the codeline:
      - click into the codeline  or
      - go up / down with the cursorkeys

      Modify or delete the codeline in the editwindow.

      At each time one can re-establish each programstate with
        the cursor key up/down.

      EditFunctions:
       Text select (with mouse or SHIFT cursor);
       Copy selected text: Ctrl-C  or
       Delete and Copy selected text: Ctrl-X
       Paste text: Ctrl-V

      Go back to the end of the model:
      - with key Escape
      - or with the button "END".
      - or go down with the cursorkeys

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    Searching for objects:

      Select the object with the right mousebutton; use function "edit"
        (the active line in the editor must be empty).
      The cursor in the editwindow will be placed in the codeline
        belonging to the object.

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    STEP - Button
      Execute the codelines in single-step-mode.

    END - Button
      Execute the complete code.
      Interrupt the process with the Esc-key.