Meta trader 4 attachments

recently started using mt4 for trading as it has a better interface over plus500. the main key is being able to draw your own lines on charts, Fibonacci ect but I have seen several times that there is a tool that automatically inputs Fibonacci lines into a chart with a click of a button can anyone post a link to find this attachment? thanks.

I thought it was already set up by most brokers for you, it is on fxcm