diff --git a/features/multiple-cursors-core.feature b/features/multiple-cursors-core.feature
index 0a6e8b9..dd97811 100644
--- a/features/multiple-cursors-core.feature
+++ b/features/multiple-cursors-core.feature
@@ -57,6 +57,28 @@ Feature: Multiple cursors core
     And I press "C-!"
     Then I should see "This aatext contains the word text twice"
 
+  Scenario: Multiple supported M-x command (forward-word in this case)
+    Given I have cursors at "text" in "This text contains the word text twice"
+    And I type "("
+    And I press "M-x forward-word"
+    And I press "M-x forward-word"
+    And I type ")"
+    Then I should see "This (text contains) the word (text twice)"
+
+  Scenario: Unknown M-x command: yes, do for all
+    Given I have cursors at "text" in "This text contains the word text twice"
+    And I press "C-SPC"
+    And I press "M-f"
+    And I press "M-x upcase-dwim RET y"
+    Then I should see "This TEXT contains the word TEXT twice"
+
+  Scenario: Unknown M-x command: no, don't do for all
+    Given I have cursors at "text" in "This text contains the word text twice"
+    And I press "C-SPC"
+    And I press "M-f"
+    And I press "M-x upcase-dwim RET n"
+    Then I should see "This TEXT contains the word text twice"
+
   Scenario: Undo
     Given I have cursors at "text" in "This text contains the word text twice"
     When I press "M-f"
diff --git a/features/repeat-command.feature b/features/repeat-command.feature
index b49c859..f777c95 100644
--- a/features/repeat-command.feature
+++ b/features/repeat-command.feature
@@ -8,6 +8,7 @@ Feature: Repeat last interactive command for fake cursors (mc/repeat-command)
     And I press "RET"
     And I type "21"
     And I press "RET"
+    And I type "n"
     And I press "C-:"
     And I press "y"
     And I execute the action chain
@@ -27,6 +28,7 @@ Feature: Repeat last interactive command for fake cursors (mc/repeat-command)
   Scenario: Disable prompt
     Given I have cursors at "text" in "This text/0000 contains the word text/1111 thrice (text/2222)"
     When I set mc/always-repeat-command to t
+    When I set mc/always-run-for-all to t
     When I start an action chain
     And I press "M-x"
     And I type "zap-to-char"
diff --git a/features/support/env.el b/features/support/env.el
index 8410ca3..e05985a 100644
--- a/features/support/env.el
+++ b/features/support/env.el
@@ -45,6 +45,8 @@
  (subword-mode 0)
  (wrap-region-mode 0)
  (setq set-mark-default-inactive nil)
- (deactivate-mark))
+ (deactivate-mark)
+ (setq mc/cmds-to-run-for-all nil)
+ (setq mc/cmds-to-run-once nil))
 
 (After)
diff --git a/multiple-cursors-core.el b/multiple-cursors-core.el
index 628663d..b24ec7e 100644
--- a/multiple-cursors-core.el
+++ b/multiple-cursors-core.el
@@ -664,6 +664,20 @@ from being executed if in multiple-cursors-mode."
            (overlay-put cursor 'kill-ring kill-ring)
            (overlay-put cursor 'kill-ring-yank-pointer kill-ring-yank-pointer)))))))
 
+(defadvice execute-extended-command (after execute-extended-command-for-all-cursors () activate)
+  (when multiple-cursors-mode
+    (unless (or mc/always-run-for-all
+                (not (symbolp this-command))
+                (memq this-command mc/cmds-to-run-for-all)
+                (memq this-command mc/cmds-to-run-once)
+                (memq this-command mc--default-cmds-to-run-for-all)
+                (memq this-command mc--default-cmds-to-run-once))
+      (mc/prompt-for-inclusion-in-whitelist this-command))
+    (when (or mc/always-run-for-all
+              (memq this-command mc/cmds-to-run-for-all)
+              (memq this-command mc--default-cmds-to-run-for-all))
+      (mc/execute-command-for-all-fake-cursors this-command))))
+
 (defcustom mc/list-file (locate-user-emacs-file ".mc-lists.el")
   "The position of the file that keeps track of your preferences
 for running commands with multiple cursors."