Months ago, I was introduced to a Senior Director at Paypal who gave us a canned answer as to why Paypal could not offer access to that feature yet. If I were you I wouldn't assume that access to the feature will be forthcoming anytime soon and instead focusing on finding a workaround as we did (could use Stripe or have your customers create an app on their Paypal account and share the app credentials with your backend through a secure integration). Hope this helps.
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