Internal LDAP is a proper LDAP for that, but things are also stored in the OPSS schema of the DB in 12c (mappings between application roles and groups or users etc.). All in all it's a good idea…

You can add the filters view in your analysis between the title and the table.

If you look for a IF ELSE logic, there isn’t one. Presentation variables can display a default value if the variable isn’t set: @{variableName}{<default>} @{PV_Department}{‘No department select…

Any way to not show filters? Not really, because they are indeed filters (there aren't different kind of filters: they are just all filters...). The default Filter view shows all the filters for…

An understanding of ... what? OAS contains Publisher by default, that's it.