Ugh, even if you have been accepted into the Copilot Chat preview for VSCode you have to apply separately to use it in a JetBrains IDE. Surely they use the same core API?
This page is utterly useless for me. I get copilot via an organization, so how can I do what the page title promises? Also, both links on the site link to the same page.
"If you have access to Copilot through your organization (Copilot Business plan), please contact your organization administrator to ask your account manager for access to this private beta."