Variables
| Ø | Select the Move tool. Use the right mouse button single click on the variable Work To Do. For the Macintosh, hold the Control key down and click with the mouse button (Ctrl + Click). |
An options dialog box will open.
| Ø | Change the font (e.g., to Arial), the size, color, or anything else, then click Close. Changes are automatically saved. |
| Ø | Select menu Edit>Select all or press Ctrl + A. Click on the font size button on the Status Bar at the bottom of the window (probably reads 12) and choose a bigger size, say 14. Click outside of the highlighted box. |
Arrows
| Ø | Click with the right mouse button on the arrowhead of the arrow from Work To Do to overtime hours required, an options dialog box will open: |
As Work To Do increases, overtime hours required also increase, a positive causality.
| Ø | Select + (under the Polarity marking drop down menu). |
The polarity (+) is, by default, attached to the head of the arrow inside the curve. This can be changed in the Position drop down menu.
| Ø | Continue changing the polarity of arrows according to the figure below, selecting Outside of the arrow's curve for each arrow: |
Now you will highlight the positive feedback loop with thicker and colored arrows.
| Ø | Select the Move/Size tool if it is not already selected. |
| Ø | Click once on the arrowhead of the arrow from Work To Do to overtime hours required. Now hold down the Shift key and click on the other arrowheads of arrows from: |
| • | overtime hours required to fatigue |
| • | fatigue to quality of work |
| • | quality of work to Work To Do |
This will highlight all the handles and show a dotted box around the perimeter of the selected arrows.
| Ø | Release the Shift key. |
| Ø | On the Status Bar towards the bottom of the screen, a set of three buttons will have highlighted. Locate arrow; on mouse over, it will indicate that this is the Arrow Style button  . Click on it and make any selection. All arrows highlighted will change to match he chosen style. |
| Ø | Click on the Arrow Color button just to the right of Arrow Style (probably colored blue) and choose a different color (e.g., red). Now click somewhere on the diagram outside of the dotted box to unselect the arrows. Both the diagram and the Arrow Color button will adjust to the chosen color. |
