PyQt documentation in PyCharm

Hello,

is there a way to get the official Qt or PyQt documention within PyCharm. I mean by pressing Ctrl + Q the documentation window opens. With the native python modules this works totally fine and is a great help. However, on PyQt modules/classes/methods, the information you get are not sufficient. Is there a way to get the complete documentation?

My system: PyCharm 2017.3.3 with Python 3.6 and PyQt5 on Windows 10.

Thanks for your help

Daniel