Issues with SimulationXpress

Hello,

I have been trying to set up and run a stress analysis but have run into some problems.

1.) A message comes up saying "SimulationXpress is not supported for Assembly." How can I do an analysis on an assembly?

2.) When trying to analyze a part file, clicking the SimulationXpress tool does not bring up the simulation toolbar, but only activates a design study.

Any tips?

SolidworksSimulation