Hi,
I'm currently adding new issue types and workflow to an existing workflow scheme just to experiment a few things. I'm trying to restrict the creation of a specific issue type in this existing workflow scheme. Below is the scheme which I'm talking about:

I want to restrict creating "FT, NFT, VAPT" issue types. I don't want to remove these from the scheme as I would lose the old data.
I tried using jira properties from workflow by adding the following:
jira.permission.create=denied
jira.permission.create.issue=denied
But none of these works. Any way to restrict creating the said issue type.