Create AddHyd commands following the same steps as Hydrograph and RouteChannel.
Turn on the outlet layer. If it’s hard to see the outlets, turn off the Routes layer.
Select the two outlets by ctrl + mouse left key.
Right click to open the context menu and generate AddHyd.
A confirmation message will show up after clicking AddHyd. Click OK to turn off the message box.
The generated AddHyd will appear with a different color rather than the imported outlet layer.
Keep the layers of NasHyd, RouteChannel and AddHyd turned on. The map should be displayed as below.