问题
In Eclipse I can just drag-and-drop two tabs into one window. For instance, I like to keep my JUnit and Search tabs together:

How can you do this in Intellij?
回答1:
You can't combine multiple floating panels into one in IntelliJ IDEA. Feel free to submit a feature request.
回答2:
It seems there is no such feature in IntelliJ (at least as of version 11). In my opinion, IntelliJ has much less support to dual monitor than Eclipse. There is an existing feature request: http://youtrack.jetbrains.com/issue/IDEA-77163 , please help to vote it up.
来源:https://stackoverflow.com/questions/8173170/how-do-you-combine-two-tabs-into-one-floating-window-in-intellij