How to solve linear static problem using PCG solver and output Stiffness matrix [K] to a result file

Hello,

I'm new to Altair's products and currently working on a linear static problem, Pre-processing in HyperMesh and Solving using Optistruct. I have two questions that I would appreciate some guidance on:

1. In the 2022 version of OptiStruct, the default solver is MUMPS. Could someone please guide me on how to change the solver to PCG?

2. Additionally, I need to output the stiffness matrix [K] to a file. Could you kindly advise me on the steps to do this?

Any assistance provided would be highly appreciated.

Thank you!