Onboarded Connector within a project can be shared with other projects within an Organization. You make them available using the Available Connectors page.
To share Connectors, follow these steps.
From within a project, click Home > Connectors.
On the Available Connectors page, choose a data source and click the the Options menu (down arrow icon).
Click Make Connector available within organization.
An Organization icon will appear in the Connector row.