do not get out of mc with return

init.el

@@ -297,14 +297,14 @@ a file in the home directory."
 
 ;; * Multiple cursors galore
 (require 'multiple-cursors)
+(define-key mc/keymap (kbd "<return>") nil)
+
 (global-set-key (kbd "C->") 'mc/mark-next-like-this)
 (global-set-key (kbd "C-<") 'mc/mark-previous-like-this)
 (global-set-key (kbd "C-c C-<") 'mc/mark-all-like-this)
-(global-set-key (kbd "C-S-<mouse-1>") 'mc/add-cursor-on-click)
 
 (global-set-key (kbd "H-.") 'mc/mark-next-like-this)
 (global-set-key (kbd "H-,") 'mc/mark-previous-like-this)
-(global-set-key (kbd "H-<mouse-1>") 'mc/add-cursor-on-click)
 (global-set-key (kbd "<H-f13>") 'mc/mark-pop)
 (global-set-key (kbd "<H-f14>") 'mc/mark-pop)
 (global-set-key (kbd "H-#") 'mc/insert-numbers)