Hi,
The role name that you need to enter comes from the Session Provider that is configured in the grid (the server application that Smart Office is running on). If the session provider supports roles there should be a list of rolenames to choose when configuring a rule for the Setting. Only userids can be manually entered.
Any role or configuration in M3 does not apply for the Settings rules. Smart Office is used for both M3 and Lawson so the roles used for settings are the roles the application server (grid) uses. Usually LDAP roles (as DSSO/ Lawson security has not implemented the list - roles support that Smart Office uses)
Also note that there is one setting for the "first time" default Canvas. It will only get applied the first time the user starts Smart Office. You can force the same canvas over and over again but then you need to set "Disable change to User Canvas" in Mango.UI (as well as Canvas - file name) and upload the file in Category Files Administration in the Canvas category.