this already works, just use `YodeCreateSeditorReplace`. The command creates a seditor and opens it in the current window. You can then use the created seditor like any other buffer. To open a selected code part in normal splits do:
Yode-Nvim can create more regions of the same file as well as a floating "window manager" for regions called "layout". Yode-Nvim syncs changes from regions to files in real time where you need to "write" the changes by hand with NrrwRgn.
Splits are not based on content, but are controlled by a layout algorithm. For horizontal splits, for example, the size changes every time you create a new one. Yode-Nvim is based on the size of the seditors and enlarges/reduces them automatically. There are more layouting algorithms planned and they can be different for each tab, the code is already set up for that.
Yode (the POC 4 years before) itself only worked with a (JavaScript) AST to create seditors. Tree-sitter would have helped here to provide an AST for different programming languages uniformly directly in NeoVim. Yode-Nvim is more powerful than the first version because it operates on lines to create seditors. In this respect Tree-sitter doesn't matter for Yode-Nvim. If someone uses Tree-sitter to select code in visual mode, he can easily create seditors for code objects like functions. This is also possible without Tree-sitter, but you have to select the function yourself.
I tested Sencha, jQuery Mobile and Dojo 1.7 and 1.8 a week ago with my Nexus phone -> Dojo 1.8 wins clearly when it comes to performace of touch events and transitions :)
How do you think code checking tools (FindBugs), buildsystems (Maven), version control systems (Git), ... has an impact to your productivity/flow? I think, this tools helps me a lot, because I just must write code, commit, write code, commit, ... and all other stuff runs automagically in background.
In my opinion APIs are also very critical for flow, beside the programming language. If I see easily what I must use/touch to get things to work, I'll be productive. In contrast to big/strange named APIs where I need to read a lot of documentation to get the idea behind.