I change the configuration of the story points to be applied to all the tickets and not only stories so I go in settings => Issues => Custom fields => Default Configuration Scheme for Story Points => Edit Configuration
Then in "Choose applicable issue types" I change from story to Any issue Type.
But Then when I go back to my Board settings => Estimation
and select Story Points.
I still have the same notation then in my tickets as I can only put 1m as minimum unit and always the "m" for minutes
How can I arrange that ?