How to enable Azure AD SSO for grafana cloud?

I’m using grafana cloud(trail) account, right now I’m just accessing the portal with registered email id.
In the local setup, I have all the .ini files to enable the Azure AD SSO.

but in the cloud instance, I don’t have any setup of .ini files to enable it.

Instead of sign in with grafana, I want to sign Azure AD.
How to enable it?