LyX ⇒ Need help with AMS article structure view

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I can see only three levels of navigation tree in structure panel. I can see there parts, sections..
but also i need to see theorms and defenitions there. Only their names, from the first row, ofcourse.

I looked over many files used in ams layout document class, but i can't find one, that I need to correct in config, for achieving my goal.

Can anyone help me?
or even understand me xDD?..

Sorry of my russian english..