Since Turris OS 4.0 (based on stable OpenWrt 18.06) there is no uCollect anymore. We are developing a new data collecting system - Sentinel. Which means no data collection tab, yet and some things, which need to be done and they can be found here: https://gitlab.labs.nic.cz/turris/foris/foris/issues/158 most notably Web UI integration. Right now, the data collection package list contains a dynamic firewall, which is not dependent on registration and you will get firewall updates.