Script to hide the delete folder option for Xray test repository

[akshay_kg]

We are using the xray test repository for managing the manual test in our company, the problem with that is there is onle one role that addressed who can create or delete the repo/ folder tree. This is causing the huge chaos as users are mistakenly deleting the root folder rather than the one child they don't need. Can anyone help me with the script to hide the UI 'delete' option  ? I'm fairly new to script runner it does not seems very easy to do so. 

Any help is very much appreciated.