XF 1.5 Enabling links for admin

I'm admin and I can't put links in my thread posts. It must be turned off somewhere because the "link chain" and "unlink chain" don't show up in the editor.

Where can I turn on "insert link" buttons just for admin?

This is what it looks like (with no way to insert links):

Screen Shot 2015-08-19 at 4.58.58 PM.png