It would be nice to have the option to create templates that as an input get more than one parameter(currently the functional unit is the only input parameter). This way it would make it much simpler to model various constructions and render unnecessary the need for multiple templates describing similar constructions. For example there could be a parametric template hollow core slabs or metal decks where the user will just have to add the total area as well as the geometrical properties instead of trying to calculate the exact concrete and steel quantities.