To change the order of the field columns, drag the header to the desired location and drop it there.
To pin a column to the left, click the thumbtack in the field name, as shown in the figures below; the column moves as far as it can before it encounters another column that has been “pinned.” Click the thumbtack again to “unpin” the column again, so that other columns can be placed to its left.
You may also know this function as "freeze column"
For example, in the below screen shot, the column "Family" is unpinned
After clicking on the pin icon, the column "Family" is pinned and you can scroll horizontally through the document list
An individual user’s column settings can be set to the matter defaults by selecting Matter -> Reset Window Layout from the Matter menu.