Option to integrate all Slack accounts with Confluence

When integrating Confluence and Slack, if a user does not enable/link the Confluence Cloud app when someone shares a Confluence link, the user without the integration/link enabled will see the following message:

Looks like you've just shared a Confluence Cloud link. To display previews of pages and blog posts from https://instancename.atlassian.net, link your Confluence Cloud site to your Slack account.

As those users will still need to manually integrate to either see it or stop noticing the message, this is a suggestion to have an option that would allow the app to be integrated for anyone that will be using the Slack application connected to Confluence, instead of needing to manually create the integration, one by one.