Cloudflare tunnel equivalent of multi-casting. Selecting best origin server by connected Cloudflare Edge

**Describe the feature you'd like**
Cloudflare tunnel equivalent of multi-casting.

When there are multiple origin servers located at geographically far apart locations, each connected to a near by Cloudflare Edge, I would like the incoming request to be directed to the nearest Cloudflare Edge.

For example, if there are two origin servers. One is at the US, which is connected to LAX. Another is at Singapore and is connected to SIN. When there is a client coming from Japan, I would expect the request is forwarded to the Singapore origin through SIN PoP.

**Describe alternatives you've considered**
Alternative is to not use Cloudflare tunnel and use origin IP that supports multi-casting.