Opens a Search Files tool in for a Plain Directory or Root and Patterns search, using the directory associated with the current tool (in particular, the directory of the buffer displayed in an Editor tool).
If an existing Search Files tool is reused by this command and was last doing a Root and Patterns search, then the directory is placed in the Root Directory box. Otherwise, the directory is placed in the Filename Patterns box for a Plain Directory search with the default pattern added to the end (see Search Parameters).
Prompts for a regexp and performs a System Search in the currently selected system.
LispWorks IDE User Guide (Macintosh version) - 25 Nov 2011