There needs to be a preview button under the captchas list, similar to how it is in the default alarm settings.
support conversation
There is currently the captcha preview dialog which comes up when a captcha is selected. It has three options: never, no and yes. If you press ‘never’, the app won’t ask again whether you want to preview the captcha upon selecting it.
Maybe an option in the settings would be great that resets the state of this dialog as if the user never pressed ‘never’.