Only one nesting solution; Laser & Waterjet cutting

Hello, 
as I was trying the nesting feature in the laser & waterjet cutting, I noticed that no matter the input parameters, I always only get one nesting solution. The documentation implies that there should be multiple solutions: "A list containing the result of the computation of nested assemblies is displayed". Am I missing something?
There are the two options for a stopping criteria: "First Solution" and "Time Limit". Is there a point to the time limit other than stopping computation when finding a solution takes too long?
Best Regards
Nils Schütz