Video Card - Dedicated GPU and Shared GPU

[djnoone]

Hi again.
I have one Nvidia GeForce RTX 2070 Video Card.
This model have two kind of memory: a shared GPU of 16 GB and Dedicated GPU of 8
Keyshot seems to use only the dedicated, so any larger (polygon count) scene cannot be rendered in GPU mode - the Dedicated 8GB GPU space is filled up and the Keyshot "refuses" to witch.
Is there a way to use this Shared memory into play?