App installation and setup

• How to connect Brandtrack Player on an iPad to a Sonos Era 100
• How to install the app.
• How to change devices?
• It asks me for a 6-digit code, where can I find it?
• My app says “Silence”
• How to select playlists and schedules within the Brandtrack Player App
• What crossfade is and how to configure it in the Brandtrack Player App
• How to change the download storage location in the playback app
• The app shows "Unable to initialize" on startup
• «Unknown Error» or «Invalid PIN» on a new installation or PC