How can I refer to a Prefixer non numeric ID?

Question

I have used a Prefixer before a certain signal flow which I then want to replicate. I used the ID feature of the PreFixer to give a unique ID.

But how can I refer to that ID in the sound the is being prefixed?

For example, I'd like to rename a MemoryWriter. I want to write to memory some audio thats happening inside a prefixed namespace, and route it out to a processor which has only one instance which is outside any prefixer namespace.

Kind of like in the multi grid, an aux/submix kind of concept.
 

Inside the prefixer, the memory writer is also within a Stereoizer, so I need to construct its recording buffer name like this for example,

{'aux'&?ChannelNumber}

But then how can I add on the namespace?

I'd like this to work -- {'aux'&?ChannelNumber&'_'&?id}  where ?id automatically resolves to the Prefixer stem.

Then I know what to call the Memory Read outside the prefixer, in order to access this submix

Answer 1

Well, I found a cool solution which is good to share. I set up an example in a multigrid, with copies of the SignalFlow I want to replicate routed to one Processor. Then I press the super cool 'Extract Current Signal Flow' button and saw how the MultiGrid constructor algorithm programs the flow and copied that approach instead of doing tricky memory rewriting.