How to add an existing email in the UI template list in OJS 3.4?

Describe the issue or problem
OJS 3.4 introduced a new automatic email to notify editors that a new submission needs an editor to be assigned (SUBMISSION_NEEDS_EDITOR ; object is A new submission needs an editor to be assigned : {$submissionTitle}).

Problem is that this email is not displayed in OJS email templates list (Parameter > Workflow > Email).

Is there a simple way to add it the template list?

Thanks for you help.

Regards,
pierre