Visual formula editor

[Ruslan Kabatsayev]

Hi all,

Is visual formula editor still being worked on?
I'd like to make some changes on its interface, namely shortcuts to
insert some elements like fractions, roots etc., making all this feel
more like Wolfram Mathematica's formula editor (which is _quite_
powerful and logically consistent). Ideally, this would have the power
of Mathematica's formula editor, residing in a FOSS suite.
Has there in fact been any discussion on how these things should feel
like? Or is there any documentation about this?
Also, could someone give some pointers on where all this stuff is
located in the code?

Regards,
Ruslan