Sync already owned games for nitro promotions

Hey there, so warframe is a very popular game that comes with added bonuses for installing it with your nitro subscription. There is a huge market of people who already have warframe installed (and I've heard from them that the discord one has worse performance), so why don't we have a way to sync our already installed games so we don't have to wait a half an hour to download the game, only to uninstall it 30 minutes later. Thanks ~Evil