HELP MACRO FOR DESTINY 2

Hello, I am a destiny 2 player and I can not do a macro (this is the first time I use a macro). I would like to do this macro which is presented in this video : Please if you can give me a screen of the macro and explain it to me because I really don't understand. there are key differences that I want to use but I don't think it will interfere: video> me w > z 1 > mouse wheel (up) shift > e 2 > mouse wheel down hoping you can help me, (I'm sorry for my English but I'm French) thank.