Great! Points 1 through 3 all make it more difficult for me to use, as compared to the Jupyter Notebook, so any UX improvements in those areas would be great.
Speaking of the keyboard shortcuts (point 2), I find it hard to navigate the Datalore shortcuts because I don’t understand how they are organized. They’re not in alphabetical order, but they are not grouped into sections either. I find Jupyter’s help window to be easy to follow, and it’s nice that Jupyter has a separate, searchable command palette. Being able to browse the Datalore shortcuts in logical sections is crucial for someone coming from Jupyter, because the Datalore shortcuts are 100% different from Jupyter shortcuts.