Code View Latex behavior

i’m a newb, but i like Mr.J very much!

in 1.0.209, code view(WYSIWYG) had now a latex edit form. but it’s a little uncomfortable, and can be only edit and can not add new.

It will be changed because it is still under development, but I think the method similar to typora is the best.

Below is a demo of the “behavior” I want.


code pen link