diff --git a/Default.sublime-commands b/Default.sublime-commands
index 7b12aad..d510ee2 100644
--- a/Default.sublime-commands
+++ b/Default.sublime-commands
@@ -7,6 +7,10 @@
 		"caption": "Preference Helper: Open *.sublime-settings",
 		"command": "pref_open_setting_file"
 	},
+	{
+		"caption": "Preference Helper: Prefill from Default.sublime-settings",
+		"command": "pref_fill_setting_file"
+	},
 	{
 		"caption": "Preference Helper: Disable Read-only for Package",
 		"command": "pref_exclude_package"
diff --git a/Preference Helper.py b/Preference Helper.py
index 86512b5..060ae5c 100644
--- a/Preference Helper.py	
+++ b/Preference Helper.py	
@@ -37,6 +37,9 @@ def on_query_completions(self, view, prefix, locations):
 
 class PrefFillSettingFileCommand(sublime_plugin.TextCommand):
 
+	def is_enabled(self):
+		return is_sublime_settings(self.view)
+
 	def run(self, edit):
 
 		point = self.view.sel()[0].a if self.view.sel()[0].a < self.view.sel()[0].b else self.view.sel()[0].b