Shoot photos in square format

[designeryzy]

Hello Magic Lantern forum
i just signed up to this forum , I've been learning a lot from it
i am basically a beginner photographer , love street style photos
i have magic lantern on my 550D [ T2I ]
My question is How to shoot picture in square format , aseptic ratio 1:1 as i don't have this option in my main menu
thank you all  

[DidierAubin87]

I don't think your camera has 1:1 ratio square format. It's only 4:3 mode as I know 

[ItsMeLenny]

i own a 550D also, it's actually 3:2, in all 3 resolutions (or 6 if you count the different qualities for each resolution)
you can add an overlay in the camera to view the screen in 1:1 but the photos will still be 3:2