この記事の目的

The purpose of this article is to provide some suggestions on how to copy projects, since it is currently not possible to do this in Jira Cloud out-of-the-box (without any 3rd party apps installed).

Suggestions

You can consider looking into 3rd party apps to achieve this.

Some example apps are listed below:

• The Jira Command Line Interface (CLI) and using its cloneProject command. 
  • You can find the documentation on this here.
• The Deep Clone for Jira app
  • You can find the documentation on this here.
  • This app is also capable of cloning a bulk of issues or Epics and its issues
• The Elements Copy & Sync - clone Jira issues app
  • You can find the documentation for this app here.

 These suggestions are not officially supported by Atlassian. Please contact the vendors for if you have any questions using them.