How to disable Category and sub-category while enable item field?

How to disable Category and sub-category while enable item field?

Hi, I believe that if i would like to setup "Requester can set"  item fields, category and sub-category will have to enable "Requester can set" as well.

Is there any way to keep item fields "Requester can set" and "Requester can view" for category and sub-category?

The reason is after user select incident template, they will change category and sub-category again because fields is show to them and they will think they have to choose. this can mess report and item will change to that worng category.