I have ScriptRunner with Jira Data Center. Has anyone figured out a script that can limit which sub-tasks my user can choose from based on what Issue Type they have created. Not all my sub-tasks are appropriate for all the issue types on my project. Atlassian indicates they do not support this, so I was hoping I could script something. I'm terrible with scripting so I really need something with detailed instructions if you can help me. I have 3 issue types (A, B, C)) and I have 3 sub-task types. (a, b, c). I want to limit each Issue Type so a user can only pick the same sub-task type (Issue Type A allows creation of only sub-task a, Issue Type B allows creation of only sub-task b, Issue Type C allows creation of only sub-task c.) Help??