tia Viewer Core is only available as Container and can support the standalone viewer scenario with kgs customizing in SAP or a so called CSV scenario that is based on ArchiveLink get Commands.
In both cases in addition to the viewer a tia® Content Server ArchiveLink (tC) is required. Each viewer Container supports one tia ContentServer as destination.
tia Viewer with kgs Viewer Pack
tia Viewer CSV Scenario*
to use ABAP Rest a transport is required, otherwise creating notes and annotations is not supported