How do I jump to a specific line of code in Xcode?

Seems like such a simple thing but I cannot for the life of me figure out how to do this.

How do I show lines in Xcode?

Go to Xcode Preferences > Text Editing > Show: Line numbers to show the line numbers on the editor. Show activity on this post.

How do I change the shortcut in Xcode?

For Xcode only , you can't change Command + Click to Control + Click. If you want to change your MAC Shortcut Key then you can Change it from Goto System Preference -> Keyboard -> Modify Keys then update your shortcut key according to your preference.

How do I comment in Xcode?

6. CommentsBy selecting a few lines of code (pressing ⇧+↑ or ⇧+↓), you can comment a bunch of lines in a single shot with the ⌘ + / shortcut.

CMD+L will do it... This seems to have changed in Xcode 4.