How can I prevent monsters from being attacked in scripts?

Ah, I think I understand now, sorry. Do you know where to enter the scripts? Map Properties => Map Script => Edit Script. But this method isn't very good; the editor often crashes, erasing the changes. Therefore, I recommend HSerg's script editor. You can find it under this video -> https://www.youtube.com/watch?v=M5_ND_yeSLk; it also explains script examples.

P.S. I don't understand how you couldn't find it on Google. The first few pages contain Ogoi's guide to scripts and Remix's videos.