If you do not feel like drawing a 3D BIM model you can use a DWG drawing in the background or just draw it yourself using Fine ELEC’s CAD features.
Drawing the building in 3D with BIM objects is not required to calculate the cables, protection devices, short circuit controls, permissible current in each line, voltage drops and more but Fine ELEC will help you to do it in just a few clicks. Calculation and design are independent modules : you can use only one for some projects if, for example, you like to enter just the data in a table to calculate the network.