How I restrict a user to execute UPDATE OR INSERT? MYSQL LIKE SYNTX NOT SUPPORTED?

I am using Couchbase Community Edition 6.5.1 build 6299 ‧

How I restrict a user to execute only select,update queries on a bucket like mysql.

Will the following queries execute directly?

#creating a user moaz with password test123#
CREATE USER ‘moaz’@’%’ IDENTIFIED BY ‘test123#’;

#Granting moaz with SELECT,INSERT,UPDATE permission
GRANT SELECT,INSERT,UPDATE ON json_tree . * TO ‘moaz’@’%’;

I HAVE TRIED ABOVE BUT THROWS ERROS::
[
{
“code”: 3000,
“msg”: “syntax error - at USER”,
“query”: “CREATE USER ‘moaz’@’%’ IDENTIFIED BY ‘test123#’;”
}
]

I HAVE READ THROUGH https://docs.couchbase.com/server/6.5/manage/manage-security/manage-users-and-roles.html
but i cant find any user group on my panel, so how i implement user group and role? Couchbase community version does not support user group ???

@vsr1 i mentioned there i read the docs https://docs.couchbase.com/server/6.5/manage/manage-security/manage-users-and-roles.html but i could not see the group option on my administrative web panel.

is this feature only for enterprise edition?

RBAC is EE only https://www.couchbase.com/products/editions

@vsr1 so how we ensure user restriction? suppose one user should not be allowed for update or delete. don’t you think this are mandatory feature for CE also?