Next Generation Supplier Self-Service Registration - Include a validation

Summary:

Adress Region

Is it possible to include a validation in "address name field" so user can input only specific values??

Something similar to what is shown in this video, where you can see a validation is included based on regular expressions

https://www.youtube.com/watch?v=msQtt60ClJQ

Version (include the version you are using, if applicable):

25A