When will jupyter have "highlight and execute" functionality? The cell concept is fine, but I'm constantly copy pasting snippets of code into new cells to get that "incremental" coding approach...
Turns out that with JupyterLab, all you have to to is right-click and select "New Console for Notebook" and it opens a console pane below the notebook already attached to the notebook kernel. You can also instead do File > New > Console and select a kernel listed under "Use Kernel From Other Session".
The "New action runInConsole to allow line by line execution of cell content" "PR adds a notebook command `notebook:run-in-console`" but you have to add the associated keyboard shortcut to your config yourself; e.g. `Ctrl Shift Enter` or `Ctrl-G` that calls `notebook:run-in-console`. https://github.com/jupyterlab/jupyterlab/pull/4330
"In Jupyter Lab, execute editor code in Python console" describes how to add the associated keyboard shortcut to your config: https://stackoverflow.com/questions/38648286/in-jupyter-lab-...