Hi,
When quickly navigating around the UI, it is possible to use the arrow keys to move the cursor out of the viewport of the text editor. This means that you have to go to the mouse and scroll the window down to the correct line to see what is being typed. Would be great if that little annoyance could be improved. Loving the versatility of the commands so far.
Cheers!

Hello. Thank you for report. Some limitation issued by Factorio UI engine, so horizontal scrolling could not be added nicely.
I made some improvements and it will be available in fCPU v4.10