One way to control the width of a table is to add or remove columns using the Show Columns link. You also have the option of resizing table columns.
This feature is available when you see vertical borders between columns. You can enable and disable re-sizable columns on the User Settings page, which you access by choosing loginname > User Settings in the console menu.
You change column width by hovering the mouse cursor over a column border, holding down the left mouse button, and moving the mouse. If you make a column narrower than its contents, text is abbreviated with an ellipsis (...) at the end.