FĂ©lix, i ran into this restriction a while ago. on this list i was helped, and ended up using the suggestion to instead put my common bits in a property in the subtree for a given "name"
***** aggregate.R :PROPERTIES: :header-args+: :tangle build/package/covid.19.data/R/aggregate.R :header-args+: :noweb-ref aggregates :END: then, the source blocks themselves have no name and are very plain #+begin_src R i don't know if that will be of any help. cheers, Greg