As of now, one salesforce can only integrate to one JIRA Cloud. This feature request is to allow multiple JIRA Cloud into one Salesforce
Note: user can integrate one JIRA to many Salesforce,
|Hosting platform||Cloud, Server|
This idea has been parked as we are working on the rewrite of the Salesforce package this year and this idea can only be shipped after the completion of the rewrite.
Current estimate: By April 2022
Aidin - Product Manager of the Connector for Salesforce and Jira.