I'm thinking a network or channel system would be a very useful feature. This would allow a player or group of players to create network of waystones linked to a unique tag.
This would be useful in a few ways. A player could organize their waystone networks based on utility (dimension, towns, farms, biomes, etc.)
Groups of friends could create a common network to each others bases without showing the network to a whole server (as global does).
Im thinking an added nbt string the player could define (similar to how the player defines the waystone name). When a waystone is accessed, it generates a list of waystones limited to only waystones with a matching 'channel' string.
Pocket wormholes could be shift+right clicked on a waystone and store the channel nbt to access just that channel or a global waystone to access the global list.

Im sorry if this has been asked for before - i did browse through the issue list to see if it had been suggested already.