Auto-open NERDTree in “EVERY” tab

Question

Is it possible to open NERDTree in every tab with pressing t or T in NERDTree, if yes, How?

Answer 1

How about toggling it.

" in .vimrc
" NERDTree, Use F3 for toggle NERDTree
nmap   :NERDTreeToggle

In OSX, you just need to fn-F3 to toggle NERDTree.