Hello Troy,
I think that the need to share a common password store is much better
solved adding the sharing feature (that we have been long planning to
add to Clipperz).
Using OTP to share access to some common data is like "barking at the
wrong tree"; it is something that may be used for some limited scope,
but not worth investing much effort into making it fully featured, as
there are better options elsewhere.
Regards,
Giulio Cesare