Re: Changes to phone layout
You can't change anything about the keyboard. Wondering why you would want to do that? From all SIPs I've ever used - which was a lot - WP's keyboard is far the best of the bunch.
And what is that quick Cortana app? Oo Never heard of it. Either way, Cortana is nothing you could download. It's not an app or anything, it's part of the OS. If you can use her or not simply depends on the region, regional format and language your device is set to. If Cortana is available for your combination of settings, you'll automatically have her. If Cortana is only available in Alpha version for your combination of settings, you would need to be part of the Preview for Developers program and have installed the latest (beta) updates.