Nerdtree - save state of opened directories

Question

A typical workflow for me is opening Vim (MacVim to be precise), doing:

:NERDTree 

then manually opening various subdirectories

Answer 1

Unfortunately, there is no way to do this in NERDTree - yet. If you feel like the feature deserves attention, however, you can add it yourself or submit a request for it on GitHub, and it will be available to you soon.

Edit: I took the liberty of submitting the feature request myself; you can track its status here.