Create a new model

Select in the menu File → Model → Create new… The calculation form now opens.  It contains a number of preset values which you do not need to change at this stage. It is possible that you should now select the type of network, cooling or steam, if it is not a district heating network. Give your model a name in the model name field, then save your model.

Close the calculation form, and in the Database toolbox select your new model.