They have even more simplified and smoother functions. Please keep in mind that I also have more on my website that are for sale. Since my new changes to the fire alarm blocks went well, I am going ahead and giving these away for free. These are the ones I backed up for just in case I don’t like my new changes. These are blocks that I have used in fire alarm design for a few years but recently revamped. A few fire alarm cad blocks that have unique attributes and functions to simplify fire alarm design.