I discovered LyX recently and I liked it. Save one extremely serious drawback here. One can enter new formulae as LaTeX expressions, but once entered they must be edited with LyX tools only. This constraint is so unnatural that I could not believe it is there (taken into account the fact conversion of LyX file to LaTeX format is trivial). For me it ruins the whole enterprise. Is there any plug-in, macro, whatever to circumvent this weird limitation?
P. S. I know it was asked not once in the past, but all the threads I managed to find are a few years old. Maybe someone wrote such a macro/add-on/something.