[NTG-context] Different prefixes for heads and references

Hi, How do I get different prefixes for heads and numbers. For example, I want %------------------------- \section {One} \subsection[sec:test]{Two} See \in[sec:test] %------------------------ to give %------------------ I One A) Two See I-A. %-------------------- I tried playing around conversionsets, prefixsets, etc. but could not figure out how to do this. Is something like this possible with the new structure code? Aditya