Sven thanks a lot for your response.
I was wondering whether we can introduce the above mentioned feature with an icon (say next to the Run icon) so that I/we can repeatedly press the icon and watch the execution of code lines one each time (if you reach a loop then the whole loop is executed or if you reach a function thrn the whole function is read). It is not "functional" for me to move the mouse to each line, right click and choosing to run the line (although of course the current feature by mouse is necessary).
Best,
Yiannis