Dredging activities contribute to the suspended concentration through spilled material and it contributes to changing the morphology through the dredging itself.
In the main Dredging dialog you can add a new dredger by clicking on the "New dredger" button. By selecting a file in the dredger list and clicking on the "Delete dredger" you can remove this dredger. For each output file you can specify the name of the dredger and whether the dredger should be included or not. The specification of the individual dredgers is made subsequently. You can go to the dialog for specification by clicking on the "Go to ..." button.
If one or more dredgers are included in the simulation, you must specify if you want to update the bed due to the dredging.