How to disable comments from kanban issue detail screen?

[Andrea Boerio]

Hi, 

we wanted to avoid comments in sub tasks, so we added a specific workflow for this issue type.

For each status of this workflow we set the property

jira.permission.comment.group = [group of administrators]

So, subtask follow a specific workflow, and they cannot be commented from other than administrators. 

It works well in the standard screens, for example

where the "Comment" button is not available.

In the kanban board issue detail screen instead the "Comment" button is still available.

I've tested that actually this let you write into the comment box, but when you try to save your comment, you'll be prompted with an error.

So, in the end it seems that subtask commenting is avoided, but I'd like to make the "Comment" button disappear also in this screen.

Any ideas?

Thank you very much, Andrea.