render new screen after button click

I need to render new screen after I click a button ( otherwise there'd too much items on one screen and it'll be messy) is there a way for that cause I can't find screen in user interface

Tutorials:

MITs tutorials    http://appinventor.mit.edu/explore/ai2/tutorials.html

AI2 free online eBook   http://appinventor.mit.edu/explore/ai2/tutorials.html   ... the links are at the bottom of the Web page.

and the links at 

https://groups.google.com/forum/#!searchin/mitappinventortest/change$20screen   should help.

What have you tried?

I use open another screen block from control, I try to search for in here= this group but I entered too much info that's why I didin't find what I was loooking for