Nowadays more and more people are migrating from Exchange to Office365/Exchange Online or are using a Hybrid solution. Many people don’t know that they can use the Exchange 2010 Management Console to control their Office365 settings and users. This is how you can link your Office365 environment to the EMC.
First download and install EMC, this is straight forward. Now open the EMC and select add Exchange forest :
Enter a friendly name and choose the option “Exchange Online”.
Enter your credentials and hit ok!
Notice that you have the possibility to administer your on premises Exchange and Office 365.