> (a)dd a childnode(m)ove the curent node(d)elete the curent node(c)copy the current node

m + c on the folder would duplicate it

How to jump back to NERDTree from file in tab?

ctrl-ww  http://stackoverflow.com/questions/1656591/how-to-jump-back-to-nerdtree-from-file-in-tab

NERDTree moving from file in tab.