3 Block Split View

I want to make a POS application. I need to split screen 3 part like in image http://genesismerchant.com/gen-cont/uploads/2014/10/Foundry-POS-image-2.jpg

I try to add views but it doesn’t work. I inspected split view example and try to use right panel as third piece but it fails. Every part has to scroll it’s own content

How can i do that?

Hi, i would do something like this;
Maybe there is another and better solution, since i never worked with 3 views im improvising.