Go from a ViewController, to an other section of a TabBar

Question

Hi,

I'm currently doing an application with 5 View Controllers and a tabBar on the bottom.

For this application, I need to set up a button in viewController(1) which can send me to an other viewController(3), but without touching the tabBar (it will be hidden for the viewController(1)). So when I gonna click the button, it will send me to the correct viewController and the good item of the tabBar will be selected.

I basically know how to use a tabBar, but I don't know wich functions I can use to do that.

Thanks in advance!

Séraphin