Hello Hive account@mcfarhat! Thanks a lot for your precious comment on my work. Can you please state the correct tag: "tutorial" or "task-tutorial? Also I would like ask you to explain a little more on "explanatory English issues" so I could know what parts of my knowledge I have to improve (sorry, English is not my native language but I try to do my best to improve it). Thanks again for all advices I will take my time to improve everything in the future!