In the second seminar we will continue to the case of non-compact Lie groups focusing on the specific examples of the Heisenberg group and the Euclidean motion group. Those groups are representative examples of nilpotent Lie groups and non-nilpotent solvable Lie groups, respectively. It turns out that the technical details for the two groups are quite different, so that it is too early to develop a general theory for all Lie groups at this moment. At the end of the seminar we will discuss some questions remained.