Right now, a user with "create issue" permission can create a new issue for all types (bug, improvement, new feature, task, etc..). We would like JIRA follows our internal process where only specific users can open only specific issues types. I.e

• Users can olny open "bugs" and "new request"
• System Engineer can open "features" and "requirements"
• Project management can open "Tasks"
  etc...

in that situation an external user cannot open "tasks", etc.. that are only for internal project management, for instance..