I agree with cma. The person who designs the system does most of the work. He has to do the floorplan which is all the loads and keypads. He has to do all the addressing of the devices and numbering plan so all the homeruns go to the proper panels and proper rpm's. He has to work with the electrician because most of the time he needs to be trained. After that it's very easy to program Button 1 on Keypad 1 to turn on Kitchen Recess lights. There are more advanced programming steps like conditionals, scheduled events and sequences but the basics are pretty easy. You should plan on going to training so you can be familiar with the software. I always find it easier if I do the whole job.