Open file from NERDtree in specific window (or last active)

Question

In VIM I\'ve got 4 windows opened and a NERD tree like this: So, whenever I try to open the file from NERD,

Answer 1

I'm using NERD tree 4.1.0 on Vim 7.2 and NERDTree does open files in the last active window by default.

From the docs:

Default key: o

Map option: NERDTreeMapActivateNode

Applies to: files and directories.

If a file node is selected, it is opened in the previous window.

But hitting enter when the file is selected has the same effect.