Quicksight: Change KPI visualization's Value and Target Value display column name

Hi all,

I am setting up several KPI visualizations on my dashboard. I would like to show current value as default value, difference with previous on the left, and previous value on the right. My issue is that I cannot assign generic display names to these values, instead I am forcing to use the column name values. Though, I cannot call all the columns "Previous". Is there maybe a hidden way to chose display names as you would do with a table?