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It is important to first select the 'Data Type'. Clicking on this field the user will be presented with two choices; 'NMIS Graph' or 'NMIS Dataset'. For this example choose 'NMIS Dataset'.
The NMIS Graph option allows embedding a predefined graph from NMIS into an opCharts chart.
The NMIS Dataset option allows selecting individual datasets from data collected by NMIS.
A chart can only have one NMIS graph embedded in it and as many NMIS Dataset's as desired (the two can be mixed).
After selecting the Data Type 'NMIS Dataset', the form will change slightly as below.
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