If you need to make changes to all (or most) layers in a drawing, with this dialog displayed press Ctrl+A (or right click and choose Select All), then click the operation. For example, if you click the linetype (or other) fields you are making changes to all selected items in the list.
If there are items you wish to exclude hold Ctrl while clicking to deselect them.
An extra tip along these lines. You can press Ctrl+C to copy the properties of the selected rows to the clipboard, ready to paste into other applications like MS Excel, etc.