Any way to opt a subdomain back in to Total TLS

I have Total TLS enabled on my account and had one of the subdomains get stuck validating for a while. I then deleted the cert and DNS record and re-added the DNS record, assuming it would attempt to make a cert using the Total TLS again. I wasn't aware of the warning about assumed opt-out in https://developers.cloudflare.com/ssl/edge-certificates/additional-options/total-tls/. The guide doesn't provide any means of opting back in. Is there a way of doing so? Perhaps by updating something via one of their APIs?
Cloudflare Docs
Total TLS allows Cloudflare to issue individual certificates for your proxied hostnames. These certificates will protect proxied hostnames not covered by Universal certificates.
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