This is Arch building Tool Volume-1 as a base tile order system. With this node group you can play with the numbers and dimensions of brick blocks and the sizes of the mortar. However, If you are interesting in create more complicated arch pattern, this node group gives you main frame to build your own design. Basically, the only thing that you have to do for it is to duplicate the Arch Making node group (as much as you can) by activating Switch The Division parameter. But no worries about the complexity. If you are a beginner and still like to learn how to create new patterns, download the Volume-2, 3 or 4 and discover how they are done.
(https://youtu.be/WbVWXnRywhY)