I'm not sure if this is right place to ask for a Jira feature.
I would like to be able to change a sub-task priority directly in sub-tasks list of the task ticket.
Hello @dominikj111
You can check Atlassian's public backlog to see if there is already a change request.
https://jira.atlassian.com/secure/Dashboard.jspa
There is such a change request to which you can add your vote/comments:
https://jira.atlassian.com/browse/JRACLOUD-81341
First time on jira cloud :) ... but it is obvious, thanks