DOC-3172: Update Full Screen plugin documentation to clarify classic mode requirement.

modules/ROOT/pages/editor-command-identifiers.adoc

@@ -372,7 +372,7 @@ include::partial$commands/formatpainter-cmds.adoc[leveloffset=+3]
 [[fullscreen]]
 ==== Full Screen
 
-The following command requires the xref:fullscreen.adoc[Full Screen (`+fullscreen+`)] plugin.
+The following command requires the xref:fullscreen.adoc[Full Screen (`+fullscreen+`)] plugin and is **only** applicable when the editor is in classic mode.
 
 include::partial$commands/fullscreen-cmds.adoc[leveloffset=+3]
 

modules/ROOT/pages/fullscreen.adoc

@@ -5,12 +5,12 @@
 :pluginname: Full Screen
 :plugincode: fullscreen
 
-This plugin adds full screen editing capabilities to {productname}. When the toolbar button is pressed the editable area will fill the browser's viewport. The plugin adds a toolbar button and a menu item `+Fullscreen+` under the `+View+` menu.
+The {pluginname} plugin enables fullscreen editing in {productname} when using classic mode. Activating the toolbar button expands the editable area to fill the browser viewport. The plugin adds a `+Fullscreen+` toolbar button and a corresponding menu item under the `+View+` menu.
 
-Full screen mode can be toggled using the following keyboard shortcuts:
+Fullscreen mode can be toggled using the following keyboard shortcuts:
 
 * macOS: Command+Shift+F
-* Most other operating systems (such as Windows or Linux): Ctrl+Shift+F
+* Windows or Linux: Ctrl+Shift+F
 
 == Basic setup
 
@@ -23,6 +23,9 @@ tinymce.init({
 });
 ----
 
+[NOTE]
+This feature is supported only when {productname} is operating in classic mode. It is **not supported** in inline mode. For details on the differences between editing modes, refer to xref:use-tinymce-classic.adoc[Classic editing mode].
+
 == Options
 
 The following configuration options affect the behavior of the {pluginname} plugin.

modules/ROOT/partials/commands/fullscreen-cmds.adoc

@@ -1,7 +1,7 @@
 [cols="1,3",options="header"]
 |===
 |Command |Description
-|mceFullScreen |Toggles full screen mode.
+|mceFullScreen |Toggles fullscreen mode.
 |===
 
 .Example

modules/ROOT/partials/configuration/fullscreen_native.adoc

@@ -13,6 +13,9 @@ The `+fullscreen_native+` option allows the editor to use the browser full scree
 
 *Possible values:* `+true+`, `+false+`
 
+[NOTE]
+This option is only supported when {productname} is in classic mode. It is not supported in inline mode.
+
 === Example: using `+fullscreen_native+`
 
 To use the browser-native full screen mode for the {productname} editor, set `+fullscreen_native+` to `+true+`. For example:

modules/ROOT/partials/index-pages/opensource-plugins.adoc

@@ -67,7 +67,7 @@ a|
 [.lead]
 xref:fullscreen.adoc[Full Screen]
 
-Zoom {productname} up to the whole screen.
+Expand {productname} to fill the entire screen.
 
 a|
 [.lead]