Do I understand correctly that the client tags can have different meanings for different clients?
Client tags only exist in the client, and their initial values at each client come from the project as it was last saved in the designer. After that, the client tags’s contents can be freely changed independently at each client, and those values don’t go over the network in any way. Client tags are configured for each project separately, unlike gateway tags (which are shared among all projects). Gateway tags are the only values that are synchronized (with some latency) across all clients and with the gateway.
pturmel, thank you