Hello,
first of all you have to create a dataset category like in the documentation example:https://knowage-suite.readthedocs.io/en/master/administrator-guide/server-settings.html?highlight=category#domain-management
Then you have to go to role management and create a role in order to access the category you just created. To assign it go in the dataset tab and select it.
Assign the role to the users you want to be able to see the dataset.Lastly create a dataset and assign it the category you first created.
That should work!Regards
Davide