What inspired this wish list request? I will have multiple columns in a Y axis and will need to remove a few but to do this I have to right click and remove one column then right click again and remove the next one and repeat until all the un-needed columns are gone. If I need to remove most the columns it might be faster to removal all and then add back in the few I need. Also, I may want to swap all the columns that are on the Y axis and the X axis. Right now I can only swap one column at a time so I have to start all over if multiple column swapping is needed.
What is the improvement you would like to see? I would like to see the ability to have click boxes next to the columns to remove so I could removal multiple (but not all) columns at the same time. Like we can with options when we hold down the Alt key.

For swap, maybe have checkbox that you click to swap all

Why is this idea important? This will allow for faster customization in graph builder when using multiple columns in the Y axis and X axis.