In quintly there are three types of users:
admin user
standard user
read-only user
If you are an admin user you can change other user's admin and read-only rights by clicking on your user on the top right-hand side, then by clicking "Users". As a read-only or standard user you won't have the right to access the Users, Spaces and Billing sections.
Based on which user type you are, you have different rights when using the tool: