Enable send email via Salesforce using Lightning Email Template

Currently we can only use Titan templates or Salesforce classic email templates to send an email from Titan, via Salesforce.

It would be great to be able to send via Lightning Email Templates as this currently fails. As an org we’ve migrated entirely away from classic email templates and want the business user to be able to have ownership of the language being sent to their constituents vs it needing to be gate kept by the admin or using a tool that is not receiving updates from Salesforce anymore.