[NTG-context] (again) diferent prefixsegments for different references

Dear list, I asked this some time ago (https://mailman.ntg.nl/pipermail/ntg-context/2021/102394.html). Using the following sample: \starttext \definereferenceformat[itsc][in] \setupreferencestructureprefix[itsc][default] [prefixsegments=section] \chapter{Chapter} \section[b]{Section} \itsc[b] and \in[b] \stoptext Is there a way that the prefixsegments for \itsc is only section, without modifying it for \in? Many thanks for your help, Pablo