How to batch multiple Renamed Column steps into one step

ArchStanton 

Hi again

In answer to your question "My M code knowledge is very limited, can you provide an example of how this code will look"

You can learn yourself.

Simply create some test data

Edit the query and overtype the columns.

The Power Query will automatically generate the the M rename code in the top window

If you click Advanced Editor then you can view the whole M script
 

This is how most developers learn M code,

by first using the wizard to crearte code
and then editing it.

Learn more about Power Query for free here 
https://www.youtube.com/watch?v=i66yyAl5_Jc

Please click thumbs up and [accept solution] buttons.