How can I adapt Jira Burdown chart to my real working days ?

[Alexis Lamrani]

Hello community, 

I would like to know if it is possible to adapt Burdown chart to working days (or half day).

At the moment, it seems that the burndown chart displays only the sum of the story points, decreasing day by day with the following computation : Total story points / Working days. 

However, we have some specifities that I would like to see appear in my burndown chart : vacations, training hours,... that won't be included in my story points. 

For instance :

If I have a one-week sprint with 3 devs and 15 story points total, and I have a one-day training session, I will reduce my total point to 12.
However, I won't see that we need to do 3 stories-points per day with a not working day. I will see 2,4 stories points per day with all the week days as working days.

I hope I was clear, but as you can see, english is not my native language, and the topic is not that simple to explain.

Thanks a lot