Sediment Property records are similar to the Bed Gradation templates in that a given Sediment Property record can be used exclusively for one sediment reach or can be shared by more than one sediment reach. These properties are defined in the Sed Prop tab. The record shown in the Prop. Group drop-down box at the time data is saved, will be the record assigned to the currently active sediment reach. The SIAM window with the Sed Prop tab activated is shown in figures on the following page, Transport Function1.