I am running two notebook servers in the same machine and i want to personalize them (mainly the login screen, and maybe also some translation). I have seen that putting a notebook.css in the $HOME/.sage/ directory i can customize the colors. Also, editing the files in /devel/sagenb-main/sagenb/data/sage/html/ i can personalize the login screen and so on. My question is: can i do it on a per-notebook basis? Is there some location in the$HOME/.sage/sage_notebook-sagenb/ directory where i can copy the modified files in order to affect that specific notebook?.