Providing the Stiffness matrix to Ansys structural

Hello,
I am new to Ansys, I was wondering if anyone knows if we can provide Ansys structural not only with the loads, but also with a specific stiffness matrix to solve the displacements for us (it will be then working as a linear solver). I mean I do not want to provide Ansys with only the Modulus of Elasticity (and then it calculates the stiffness matrix internally), but rather with the whole stiffness matrix in order to get the displacements.
Thanks for your time
Regards