How can hide some custom categories to reporter users during the compilation phase of "new issue"?
We would have the possibility to show different categories to the reporter and developper users (always in the same project).
Can someone help me?
There is no customization option for this.
You would have to change the source code of MantisBT (starting at function print_category_option_list in print_api.php)
Please use Search before posting and read the Manual