Please watch this video or follow the steps below:
1) Click on "Choose Columns" found on the top right of any list.
2) Check/uncheck the columns you want to keep/remove.
What Happens Now?
Now you should see the selected column appear. To undo this, simply follow the steps and deselect the column.
Pro Tip: You can rearrange the columns by dragging them across the top.
Enjoy!