I asks for possibility of adding space between text lines. In my opinion it would be very practical option, because pressing enter in konsole window will send it to virtual terminal and user might need to separate output or input. Reproducible: Always
Could you please clarify? From the title I was thinking about Profile > Advanced > Line Spacing, but your mention of input and output leaves me puzzled.
I can find option You say. My idea is about separate important output/input from other output/input. I often type make in terminal or puts printf in my code to debug, so I need empty space in terminal to know into which occurrence of make line belongs.
That isn't really an ability that come from terminal programs. It would no idea what you would consider important. I would suggest some sort of other program that highlights text and/or use Konsole's search function.