For speech rate in settings up/down move by 10, left/right move by 1. Easier to get settings right without having to hold doown the arrow keys lol.

docs/fenrir.1

@@ -239,6 +239,7 @@ Activate \f[B]OK\f[R] to save, or \f[B]Cancel\f[R] or Escape to discard
 the form\(cqs changes.
 .PP
 Speech rate, pitch, and volume use a scale from \-100 to 100.
+For speech rate, Up and Down change the value by 10; Left and Right change it by 1.
 Sound volume is between 0.0 and 1.0.
 Backend, device, keyboard layout, sound theme, and other launch\-only
 settings take effect on the next start.

docs/fenrir.adoc

@@ -164,7 +164,8 @@ options. The form captures its navigation keys until it closes.
 * Activate *OK* to save, or *Cancel* or Escape to discard the form’s
 changes.
 
-Speech rate, pitch, and volume use a scale from -100 to 100. Sound
+Speech rate, pitch, and volume use a scale from -100 to 100. For speech
+rate, Up and Down change the value by 10; Left and Right change it by 1. Sound
 volume is between 0.0 and 1.0. Backend, device, keyboard layout, sound
 theme, and other launch-only settings take effect on the next start.
 

docs/user.md

@@ -233,7 +233,8 @@ The form captures its navigation keys until it closes.
 - Arrows change list selections and numeric values.
 - Activate **OK** to save, or **Cancel** or Escape to discard the form's changes.
 
-Speech rate, pitch, and volume use a scale from -100 to 100. Sound volume is
+Speech rate, pitch, and volume use a scale from -100 to 100. For speech rate,
+Up and Down change the value by 10; Left and Right change it by 1. Sound volume is
 between 0.0 and 1.0. Backend, device, keyboard layout, sound theme, and other
 launch-only settings take effect on the next start.
 

docs/user.txt

@@ -156,7 +156,8 @@ options. The form captures its navigation keys until it closes.
 - Activate OK to save, or Cancel or Escape to discard the form’s
   changes.
 
-Speech rate, pitch, and volume use a scale from -100 to 100. Sound
+Speech rate, pitch, and volume use a scale from -100 to 100. For speech
+rate, Up and Down change the value by 10; Left and Right change it by 1. Sound
 volume is between 0.0 and 1.0. Backend, device, keyboard layout, sound
 theme, and other launch-only settings take effect on the next start.