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Vensim Help

ØIf you need to make some room at the top of your diagram, select the Move/Size tool, then choose menu Edit>Select all (or Ctrl + A), then using the cursor, drag the whole diagram lower on the view to make room for the title.
ØSelect the sketch Comment tTool.  Click at the top of your sketch to add a title; the Comment dialog box will open.

comment_dialog

 

ØType in a title for your sketch (e.g., Work To Do Project Model).  Choose a font, size, color, shape and word position for your comment, then click OK.  
ØStill with the sketch Comment Tool, click on the sketch in the center of the left hand loop.  In the comment box, enter '+'. You can also click on the dropdown arrow in the Built in clipart field and choose the positive sign ( + ). Next, in the Shape field choose Loop Clockwise.  
ØAdjust the color by unchecking Default for the Font Color and Outline Color. Select a red color. If you need to, reposition the loop image and resize the loop by dragging its handle.  Note that you can also include a bitmap or metafile from the clipboard.
ØClick on the sketch in the center of the right hand loop.  Repeat the process as before, but this time select Loop Counterclockwise and select a blue color for this loop.

Your diagram should now look similar to the figure below if you entered '+' and '-' as text in the comment box, otherwise, the clipart will be more prominently displayed:

 chap4_model_05