Hi @amekojc,
I see what you mean. The docs indicate per-field display names for dashboard variables, but in the current UI, the field option label is not directly editable. If the field is backed by a metric view, we can set the field's display name there instead. I do agree that the documentation isn't clear. I've raised this internally for clarification. I'll get back to you as soon as I hear from them.
Regards,
Ashwin | Delivery Solution Architect @ Databricks
Helping you build and scale the Data Intelligence Platform.
***Opinions are my own***