Answer for your first question
(For non public folder dashboards) Go to that dashboard stored dashboard Folder >> Click
Share option then you can mention the user/Role/Roles and internal subordinates options to share the dashboard into other users with access as View, Editor and Manager.
Answer for your Second question
I can guess following points are ...
Yes, It's possible. Role Hierarchy can be effectively able to designed in following 2 ways,
Let assume in here Person A having manager as Person C and Person B having manager as Person D.
Person C (Let's say role "State 1")
----Person A (Let's say role "District 1") (Sales Person Profile)
Person D (Let's say role "State 2&...
I learned about 2 of these the hard way... here is what I was able to find out:
None of these permissions are visible from the UI.
FlowUFLRequired controls whether or not you need to allow users to have the 'Run Flow' flag enabled on their user record or not. If it is set to false, they users don't need the flag on their user record to be able to run flows.