This indicator plots SSL Channel, ideally from an higher time frame. I couldn't find any SSL Channel script with this feature so I made one, hope that helps others.
Features:
No Repainting
The script does not repaint and follows Pinescripters' guidelines.
Other Time Frame
It is possible to select another (higher) time frame. If a lower one is selected the script warns to change it, since calling a lower time frame leads to unreliable data.
Alerts
It is possible to create alerts for trend changes (cross Up or Down).
It also shows simple labels to see trend status at glance.