For Exchange Online administrators, managing the hosted Exchange (by Microsoft) may be both easy and difficult. Easy because of the Online Administration Panel provided by Microsoft located at https://portal.microsoftonline.com/. Difficult since some advanced setup is not entertained in the portal.
It will not be the case for some large enterprises since they usually deploy as hybrid mode, existence of both cloud and on-premises Exchange Server. Therefore, the Exchange Management Console can be used to manage both cloud and on-premises server.
Up to this, I have the initiative to create the Online Management Console for those who have only used the Cloud Service and are headache about using PowerShell.
Here is the screenshots, give me some advice if you have any about the tool.