Material layers parameter animation

Any updates on this topic?
It will be lovely if Layer vector parameters could be animated in sequencer.
I am trying to crossfade two materials, I have the Blend Asset but cannot access it’s vector parameter in sequence.
I have tried with material parameter collection, as @Acolori_Medien suggested, but the crossfade is not smooth. I see stepping between 0-1 values.
Is there a way to fix this?
Thanks.