Application specific preferences saving now enabled.

docs/user.md

@@ -26,12 +26,47 @@ launch programs. Choose **Default** to restore the settings and reading regions
 that were in effect before the override. Overrides are built into Fenrir and
 are never selected automatically or remembered across restarts.
 
-All settings adjustments made while an override is running are temporary,
-including quick settings and remote changes. Saving from the settings menu,
-the save shortcut, or remote SAVE/SAVEAS reports **Save unavailable.** and writes
-nothing. Menu OK remains unavailable; use quick settings for temporary changes
-and Cancel to leave the menu. Saving remains blocked while an override is
-selected, including while it is suspended or selected on another console.
+While an override is active, **Fenrir+F** opens its application settings,
+with the application name in the title. **OK**, **Fenrir+Control+S**, and remote
+`SETTING SAVE` save that application's preferences. Quick and remote changes
+remain temporary until saved. Default settings are kept separately, including
+any unsaved adjustments made before activating the override.
+
+Profiles live in an `applications/` subdirectory of the ordinary settings save
+directory. For example:
+
+- System settings: `/etc/fenrirscreenreader/settings/applications/ninjam.toml`.
+- Personal settings: `~/.local/share/stormux/fenrirscreenreader/settings/applications/ninjam.toml`.
+- With `--config /path/settings.toml`: `/path/applications/ninjam.toml`.
+
+NetworkManager uses `networkmanager.toml`. The directory and file are created
+on the first successful save. Files contain only customized settings; omitted
+values inherit ordinary settings followed by the built-in application defaults.
+A customized voice selection saves module, language, and voice together so a
+later change to the ordinary voice does not break that selection. Profiles are
+loaded when their override first recognizes the application; restarting Fenrir
+still starts with Default. Reselect the application to reload an edited file.
+
+Application settings include voice, rate, pitch, volume, reading behavior,
+sound enablement/volume, and typing echo. Startup settings such as speech driver,
+serial device, keyboard layout, and sound theme remain in the default menu;
+clipboard storage and console routing also remain global. Session mute and the
+temporary automatic-reading toggle are not implicitly saved. Remote `SAVEAS`
+and `screen#ignore_screen` are unavailable while an application is active.
+Saving is blocked during context transitions or failed voice restoration.
+A malformed profile or unavailable voice leaves ordinary settings in effect
+and reports an error. Select the application again after correcting the file.
+
+For example, a rate-only profile contains current TOML setting names, with
+no top-level `version` field:
+
+```toml
+[presentation.speech]
+rate = 40
+```
+
+To make a saved value inherit again, remove that setting from the application
+file and reselect the override. Removing the file restores complete inheritance.
 
 An override belongs to its terminal. Switching VTs or leaving the terminal
 suspends its effects; returning resumes it when the application screen is