-(global-set-key (kbd "C-c l") 'mc/edit-lines)
-(global-set-key (kbd "C-c m") 'mc/mark-more-like-this-extended)
+(global-set-key (kbd "C-c m a") 'mc/mark-all-dwim)
+(global-set-key (kbd "C-c m l") 'mc/edit-lines)
+(global-set-key (kbd "C-c m m") 'mc/mark-more-like-this-extended)
+(global-set-key (kbd "C-c m p") 'mc/mark-previous-like-this)
+(global-set-key (kbd "C-c m n") 'mc/mark-next-like-this)