Parametric Array of Object in X, Y, and Z Directions?

Hello everyone! I’m new to grasshopper and I’m hoping someone can explain to me how to multiply an object in the x, y, and z directions. Specifically, I would like to use a standard cube as the building blocks for a tower (think an extruded rectangle composed of identical cubes), but I would like to experiment with the length, width, and height of the combined mass. Any advice on this would be greatly appreciated!

For 3d array use box array


Perfect, thank you!