Change display name without changing query name

Hello, I was wondering if someone could help me to change the display name of specific columns without changing the query name of that same column. 

The idea is to make visuals easier to understand. The image is attached for a better explanation. (I am trying to achieve the same result as the image shown. In this example, "Get_Transaction2[AccountingDate]" has been changed into "Date."

Thank you,

Adrian