You have to right click on the study name and choose
"Properties" to see which solver is being used. If it's set to
automatic, you can examine the progress dialog title bar during
solve. It will say "Sparse solver" or "Iterative..." for Direct
Sparse Solver and FFEPlus solvers, respectively.
The legend scaling defaults to global max and min unless you have
modified the PM for the plot to re-scale itself based on "shown
parts only", or you've rescaled the legend manually. Hope this