[NTG-context] combined / compressed / collapsed page and numbered citation references in bibliographies

I noticed that in bibliographies, page indexing combines runs of two or more pages (pp. 150­–151), as does page number compression in registers, while it takes three or more numbered citations to cause a similar collapse (per the MKIV-Publications manual, page 38, I do not have an example) for citation number references. Is there a way to change such compression minimums so that they can be made consistent? -- Rik