Hi @Aleksandar Tomov , unfortunately, it is not currently possible to export a pie chart directly from the Advanced Hunting portal. You would have to take a screenshot or export the raw data and create a pie chart from it.
I recommend submitting a feature request here though, as I agree it would be useful.
Please let me know if you have any questions and I can help you further.
If this answer helps you please mark "Accept Answer" so other users can reference it.
Thank you,
James