[Qt-creator] Qt Creator multi versions

[ekke]

What's the best to deal with multi versions of Qt and Qt Creator ?

per ex. had installed Qt 5.6.0 RC together with Qt Creator 3.6.0
then installed Qt 5.6.0 together with Qt Creator 3.6.1

noticed that preferences are shared between both versions

detection of Qt itself, Compilers, ... worked well - Qt Creator seems to
find it all relative to directory where Qt Creator was installed

then I wanted to use two different Project directories, but this path is
shared from both installations.
Is there a way to install multi versions of Qt using different pathes
for Project Dir ?

thanks

ekke