You can see your active streams on your dashboard. The "View Invoice" button will become the "View Stream" Button
Dashboard
Streaming | Streambill
Features
Available features for both payer & payee
View stream forecast
View invoice
Share invoice
Stream forecast
As payee
As payee, you can withdraw from streams.
Withdraw funds dialog
As payer
As payer, you can cancel the stream. Cancelling the stream will stop the money streaming. The payee will still be able to withdraw the funds streamed until the point of cancellation