Sorry for crossposting; my email-setup seems to be messed up... So posting again via the web interface.

Am 11.09.2020 um 22:58 schrieb John MacFarlane:
> Yes, we could definitely consider adding support for
> these things at a later date.

By-section citations would actually be pretty easy.
Sounds great!

> Multiple bibliographies is also simple IF it's just
> a matter of separating items out of a formatted bibliography
> into several separate ones.  But if it's going to affect
> things like disambiguation then it would be trickier.

As outlined on the github issue, I think a simple solution could be allowing multiple bibliographies, each with filters applied that either exclude or include specific items based on different criteria.