# Milk: Global \ code Experienced users can add code to the document \ tag through FlightDeck. {% hint style="danger" %} **Warning:** Bad things can happen if you accidentally enter unsafe code here. Please contact us if you're unsure about this feature. {% endhint %} ### Adding global \ code 1. Open the FlightDeck extension (control panel) 2. Scroll down to **Global \ code** 3. Enter your code 4. Submit *** ### Output location The output variable is located directly before the document's `` tag.