I don't believe this is possible today, but it would be a great enhancement request - https://ivantiitsm.uservoice.com/
My only other thought is could you create a new role, publish the dashboard as default for that new role and then use the URL 'Role' syntax (Logging In or Accessing Records Using URLs ) to make sure they are taken to the correct dashboard. This is a bit of a workaround and will depend on who you're target users are and if giving them different roles will cause problems.
p.s Greetings from Sydney!
thanks for your answer. a new role is not a good idea because users have to Change back role to "work" again.
I posted the idea, please upvote