> the official (essentially, only) client insists on only being connected to one.

You might be able to work around that limitation by using an app like AppCloner [1] or Parallel Space [2].

[1] https://play.google.com/store/apps/details?id=com.applisto.a...

[2] https://play.google.com/store/apps/details?id=com.lbe.parall...