Hide/disable Create button in Create Issue form only for a Project

unknown

We need New issues to be created in project A only from project B via " Create Linked Issue "
Although we could remove " Create Issue " permission in Permission Scheme of Project A, believe this stops creating Linked Issue even from Project B
Is there a way to just hide/disable " Create " button at the bottom of the Create Issue form only when Project A is selected ?
Currently we have Message Text field which warns them not to create, but that doesn't stop users from creating new issue.

Scriptrunner Script Fragments, doesn't seem to provide an option, instead has option to hide Create button from Blue Menu bar across Jira, which is not what required

Just wondering any possibilities.

Any thoughts much appreciated.

Payne

A ScriptRunner Behaviour can be used to limit issue types based upon certain conditions; in your case, you could leverage it to not offer any issue types. See:

https://www.adaptavist.com/blog/restricting-issue-types-with-scriptrunner-for-jira/

You could use a simplified version of that example and simply state:

issueTypeField.setFieldOptions([])

Doing that will cause a warning to display to the user and prevent them from creating an issue in that project.