This isn't the first time having this problem, 4 months ago i tried mapping for sven coop and the same thing was happening. I just need to know how to either fix it, or set the hammer editors settings of views to default. Basically my problem is that there is only one window for hammer editor which is one of the views of X Y Z. I am supposed to have four views X Y Z 3D View. I have searched over 30 times and there is not a topic to be found on this. I search up One window in hammer editor. But it gives me some other bullshit. So please help, if you can find a link or explain to me! Thank you.
Below is my problem..
. Now i may begin my maps 
( seriously wow what the fuck i was to stupid to fiddle with the settings, thank you !)