Niagara Grid 2d Collection doesn't show up in node graph

Hello,
I am trying to call a function named “Set Num Cells” in the node graph of a Niagara Module Script but unfortunately it doesn’t show up. I have also noticed that the entire category “Niagara 2d Collection” is missing. I tried enabling the Niagara Fluids Plugin but nothing changed.
What I need:
image

What I get:

How can I enable it?
Thanks for the help,
SG.