Hi Lyubo, welcome to Community!
This is currently possible! We've been rolling this out to everyone and if it's not currently available to you, it will be by the end of this week.
Assigning issues from Slack is quite simple once you've got notifications flowing in to a channel!
You can also Transition or Watch issues from the action menu as well.
For JSM June Challenge #2, share how your non-technical teams like HR, legal, marketing, finance, and beyond started using Jira Service Management! Tell us: Did they ask to start using it or...
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