It seems I don't have the full access to the clipboard of the current text editor, for copying and pasting it is ok since I realized instead of right clicking I can just "Ctrl+c" and "Ctrl+v". However it would be nicer if, for example, to allow me to highlight, right click and then "Google search"(I'm using chrome), I used to use this a lot in stackexchange. It can be done in source mode, but in source mode other convenient buttons are disabled. I suspect it may cause users to switch back and forth into and out of source mode.
Not a big incovenience, but definitely much smoother user experience if it can be improved.