The last (most important) suggestion from me (I hope you don’t have enough of me ;))
There is this function in Pix4Dbim, unfortunately it’s not good enough. The tabular combination gives some idea, but it’s not sure. There is an incredible lack of function to compare model to model and detect changes between them. Competitive software has it and uses it very well. Introducing this feature into the Pix4D package would be a breakthrough.
Judging by the name of the program (pix4Dsurvey) I had a quiet hope that the program will have this feature.