Creating kibana users

Hello All,
I'm using AWS elasticsearch service which provides kibana version 7.1.1
I have couple of doubts,
right now I've 2 Accounts(Say A & B). Account A has 4 dashboards and Account B has 1 dashboard.
I want to create another 2 user(Say user1 and user2) for Account A (user1) and Account B (user2) such that the users should only be able to view dashboards and not edit it.

Looking forward for some help...Thanks in advance.

The user needs read access to the .kibana index in order to see the dashboards available. Create users such that they have read only access to the dashboards: I would give the users read and view_index_metadata roles . More info can be found here on privileges.
https://www.elastic.co/guide/en/x-pack/current/security-privileges.html#privileges-list-indices

Thanks
Rashmi