title: Merge Multiple Qt installation
body: <p>There are multiple installation version in Qt <a href="http://download.qt.io/official_releases/online_installers/qt-opensource-linux-x64-online.run" rel="nofollow">download website</a> for each platform. As far as I can understand is the difference between those installation version is it's SDK that it contains. I've downloaded two version, Qt-5.4.1 for Linux 64-bit and Qt-5.4.1 for android and I installed android version. But, when I install Qt for linux version, Qt installer refuse to install in the same directory. So, can I merge those two version in one directory? I just thinking that if I install another version in another directory and then copy it to android version will give me problem.</p>