Scripts

I need help creating a script that will grant all the skills available in the game. I saw something like this in the map "Elven Song"; if you type @gsall skillsall artefacts, the main hero receives all skills and artefacts. However, I only need the skills. I can't open the map in the editor because it's not in the map folder. And yes, people still play Heroes 5 in 2016. Also, if possible, can this script be made to work on all maps? I mean, through @DoFile. Although then I would have to edit the script file every time, because Heroes has different script names... But the commands like add_skill and others work on the selected hero, so I want to make the script work on the selected hero. I hope this is possible. In any case, thank you in advance for your help; I will be waiting for a response.