Addition of tributaries when tributary cross section data is unknown

Hi.
I had been trying to add inflow from tributaries at several points to my river network in order to calibrate my river model.
How can i add inflow of tributaries without adding branches to the model?
Please help.

Hi,

In the boundary file, you have to define boundary conditions for each tributary. The definition of the items must include [b]Point Source[/b] and [b]Inflow[/b] as attributes. Please, see the attachment.

Regards,
Aurelian