How to get rid of the bottom window that's taking half of my workspace?

[Nietzsche]

Hello, 

I accidently pressed something, most like the "New Calculation" button, now there is a window that's taking over half the screen of my report view like this.

How can I get rid of it.

Thanks. 

[Idrissshatila · Accepted solution]

Hello @Nietzsche ,

you click on the back to report and it will go away.