The bricks were designed in Autodesk Fusion 360 and features parametric timeline and sketches for modifying.
Use the link below to download the source file.
In the Design workspace inside Fusion 360, click on Change Parameters under the Modify dropdown menu.
These user parameters allow quick modifications to the various features such as brick length, width and height.
The studs are driven with a rectangular pattern. Double click on the rectangular pattern feature in the parametric timeline modify the quantity for scaling up the top side of the brick.