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To define an existing boundary cell as a tracer, select the cell from the list on the right and select the INS key to add it to the tracer list. You must then define the flow and dye injection characteristics for each tracer cell. You can delete tracers by selecting the cell on the left and pressing the DEL key. You can also create a tracer at a new location by selecting INS and entering the location for the tracer in the I, J and Layer boxes. In this example the cell I=20, J=16, has been selected to produce 5 pulses over 5 days as shown in Figure 2 below.
Figure 2 Dye tracer results in ViewPlan.