The "Select by name" menu item lets you select only some of the objects in a currently open folder view.

Selecting objects is then done in a new dialog window, where you may enter a file specification and then press "Select" or "Deselect".

How the entry field's contents are interpreted depends on the state of the "Regular expression" checkbox.

Even though we use the term "file" specification here, the match string also work on abstract objects, such as program or shadow objects.

The "Select all" and "Deselect all" select or deselect all items in the folder, regardless of the current search string.

The dialog window only closes when you press "Close" or the "Esc" key. It does not close after you press any of the other buttons. This allows you to select several groups of files.