Email Marketing Test Emails

Is there any way to change the settings in Email Marketing so any ‘test emails’ we send to our team for an email campaign automatically have ‘test’ in the subject line?

We currently, for every campaign, have to manually change the subject line of each test that go to our leadership team - and then we have to remember to change the subject line back before we send out the campaign.

I think Mailchimp / Informz automatically make test emails have ‘test’ in the subject, so figured I would check if there is some way to do that in Wix.

Thanks very much.