Initially they will be enabled/disabled, but I'm considering changing that to "update succeeded/failed", and mark enabled/disabled by having the test written in grey.

For your other errors: I will look at them this evening and let you know (but configuring MfE+Erminig on the same calendar seems a quite dangerous thing to do: I feel that you will end up with duplicates since Erminig looks for the "last modification timestamp" of the events, so MfE may interfere with that. I'm also tempted to say that Erminig+MfE is an unsupported use case...)