> It usually has through portaudio, which seems to be broken by design
> with regards to jack. At least in audacity it only exposes jack ports
> and auto connects them to the first two ins and outs when transport is
> rolling.
>
I used to use this workaround: Roll the transport and then press
"||"
button. Jack ports will remain exposed so you can connect / disconnect
as you like. Then press "||" again to playback / record.
Regards, Pablo