Selecting classes for settling sphere

Hi guys! I recently started using Palabos and up to now I’ve mainly tried transforming existing codes to do what I want, which is modeling a solid sphere settling in a fluid in a container, all with no-slip walls. Although this will look nearly the same as the fallingDroplet showcase that code is of course not useful due to its use of its multiphase class. (And the externalflow example is of no use, as I focus on the effect of the walls on the velocity of the sphere). So now I’m at the point where I started something entirely new, but I can’t find the right classes to use - there are just SO many!

So my question: is there any logic in the classes that I haven’t found out about yet? Or do you have a suggestion of which one to use? You would really help me a lot - thanks in advance!