Hi @Jothia ,

So you created your pool as I did on the screenshot below.

Now, you need to go to the compute and create cluster based on that pool. So you need to click on Compute button.

And then you need to create new compute based on your pool. Pay attention that compute that you choose should be compatible with Unity Catalog (Data access)

And last thing, on advance tab you have an option to choose access mode for your compute: