I want to add two shortcut in Lyx: one for View->View [PDF(pdflatex)] and one for View->Update [PDF(pdflatex)].
1. Find menus.bind in ~/lyx/bind (in my system is in ./usr/local/share/lyx/bind).
2. Modify access privilege: sudo chmod 777 menus.bind
3. Open menus.bind and add
\bind "C-k" "buffer-view pdf2"
\bind "C-u" "buffer-update pdf2"
save and close menus.bind. Here, "C-k" means "Ctrl + k" which can be specified as any unused one.
4. Run the menus.bind in terminal.
