how to remove episodes that were added via missing episode fetcher?

[Iacov]

The only way I'm able to remove the missing episodes is to remove the affected show from the folder, update the library, re-add the folder, update the library again.

thanks

so there's no (easy) bulk option?
would it effectively work to delete the old library and simply create a new one? and when I turn the missing episode fetcher off, does it stay off or could there be a risk that it turns itself on? is there a way to remove it?