One of the good points with Emacs is that you can have split the screen so you get two or more views of the same file which allows you to browse around and have a clearer overview of the file. Are there are some plugins or is the same functionality already is built into Notepad++?
Just as @Ben Richards as mentioned you should right-click the tab of the file and click "clone to other view". Initially this would be vertical, you can rotate or "flip" it horizontal by right clicking the dotted line and choose then click "Rotate to the left" or "Rotate to the right"
A point of note it that you can do this for multiple windows
bug a bug i found is that if you originally have multiple tabs open, say A B C. and you cloned A say to AA, if you click tab B or C, AA would still be shown for all of the tabs without a clone. I find this inconvenient.
If you however clone B and or C, you will also have multiple tabs in the cloned windows
Just to point out, there is a detailed description of the built in functionality on the Notepad++ website with pictures and steps for newbies: http://docs.notepad-plus-plus.org/index.php/Multiple_Views
For more than two views the only current option seems to be two instances each with split views (perhaps one snapped to the left side and the other snapped to the right). Would be good if this could be expanded to allow Emacs like functionality... embedded command-line running python on the right, source code on the left.