The Directories->Refresh->Load Titles menu item toggles the option to load the file .LONGNAME Extended Attribute if one exists. If loaded, the file titles may be viewed in the Files window Details view if the Window Options->Show Titles is enabled.
Loading the file .LONGNAME EA slows disk reads. This may be negligible on high performance machines to objectionable on low end machines or on some networks. It is therefore optional as to whether the longname EA is scanned when reading drives.
Accelerator Keys - Ctrl Shift *