Pardon me if I'm late to the party but I just noticed this option today. :grin:
Create two tabs in metroIE. Now tap and hold on one of them until the option open tab in new window pops up. Just like that you have two IE windows side-by-side. And just like any other app, you can make one window bigger or smaller.
Create two tabs in metroIE. Now tap and hold on one of them until the option open tab in new window pops up. Just like that you have two IE windows side-by-side. And just like any other app, you can make one window bigger or smaller.