Scale rating field: Possibility to add n/a as option

I would like to have the option to have an N/A choice when using "Scale Rating".  

It would be nice to have a 1-10 with the dots under it to choose and then have an N/A option with a dot for people to choose.

Thank you!

I will forward this feature to our backend team for a review.

We cannot promise that it will be implemented, but we will keep you posted if it becomes available.

Thank you for suggesting it.