How to use babel "-shortcuts in LYX directly?

[Vasily Letov]

Hello, people!
In Babel there are many language-specific shortcuts. For example, we have "---,
"--~, "--* and another. The package extdash (ncc-tools collection) provides 
extra useful shortcuts, too. Unfortunatelly, LYX converts " into \char`\"{}, 
so, we forced to use ERT for such shortcuts. It is very, very uncomfortably!
I have found similar topic here http://www.lyx.org/trac/ticket/75 but it is 
still not resolved (over 9 years!).
My question is how to configure LYX to use such sortcuts directly without ERT?