Hello,

Opera still didn't approved my add-on a year ago when I submitted it for the first time. I think I will need to write them personally.
Also there is now one issue in Chrome based browsers (including Opera) that should be fixed in 4 weeks. Once it's fixed, I will proceed with this.

Until then, you can use the cloud dials page even in Opera (however it's not editable so it's just partial workaround).

Best regards,
Juraj Mäsiar