The general filling of the boxes is fairly straight forward but the time consuming part is filling in the consumer unit readings.I mainly do domestic and fit a lot of 10 way dual RCD/MCB boards.So i create a ten way dual rcd board on the online chart and fill in all the boxes that have values that never change eg frequency(50hz),type of cables,etc and then i save it as a template by right clicking on the distribution board at the top.By doing this once,then the next time you have a ten way board,you can just load up the template and half of the values have already been filled in,saving valuable time.Also make use of the help section to the right of the forms.Most of the general boxes offer up a typical value that should be going in the box so that's quite helpful as well.