Hi @user5745352. A support agent and I did some testing and we were able to create automations for a welcome email with a copied email. You'll see some drafts in there from today which were created by us so you can ignore those. When you click on the draft in the edit flow, you'll see a pop-up as seen below where you can copy an existing email.
To make sure I'm understanding you correctly, is this what you were looking to do?
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