Allow cancelling a running sequence

[gaaf]

Hi,

I would like to be able to cancel a running sequence. At the moment there seems to be no way to cancel it. I tried disabling the sequence, disabling or cancelling the controller, disabling the zones in the sequence and even restarting home-assistant. All to no avail.

I can cancel the individual zones when they become active, but that doesn't stop the sequence form activating them again.

Disabling the individual zones directly under the controller seems the only way to stop them, but the sequence still continues.

I suggest adding a cancel button to the sequence dropdown.