Its not 100% clear what you are asking, but maybe this will answer you.
You can push a stream to a primary origin server, then have 2 or more edge servers re-stream from that origin and also act as origin servers for clusters of edge servers that re-stream from this second tier.
An example would be:
Encoder > One Origin (liverepeater-origin) > Two or more Edge/Origin (liverepeater-edge-origin) > Many Edges (liverepeater-edge).
The StreamType “liverepeater-edge-origin” is the key to unlimited potential scale. For more information about this, please see this guide:
How to configure a live stream repeater