Hello.
I will be flying Finnair a lot this year but am a fan of *A.
For the sake of biz class check-in as well as lounge use, I notice more airlines and hotels offer customers the chance to buy status -- does Finnair "sell silver status"?
What is the fast-track way of getting on Finnair without mileage runs to get Silver. I have no status with OneWorld as I am already Elite with *A.

Does AMEX Plat or Diners Premium allow such benefits?

Kiitos!