How to add indicators in Mt4 ?

Follow these steps:

1. Open your mt4 terminal
2. Go to files on left top corner of terminal
3. Then click on "open data folder"
4. Click on "mql4" folder 
5. Open "indicators" folder
6. now copy all indicators from downloaded file and paste in that indicator folder
7. Close your mt4 terminal and re-open it.
8. Done!