The Demand Editor is used to assign base demands and time patterns to additional categories of water users at a junction. The editor is a table containing three columns. Each category of demand is entered as a new row in the table. The columns contain the following information:
| Field | Description |
| Base Demand | Baseline or average demand for the category (required) |
| Time Pattern | ID label of time pattern used to allow demand to vary with time (optional) |
| Category | Description of the demand category (optional) |