The PV Tree displays the hierarchical data flow between EPICS records. It displays the record types and their current values as well as severity/status. It attempts to reflect the data flow by traversing input links (INP, INPA, DOL, ...).
The PV Tree has two modes:
Enter a name into the “PV” text box, and see what happens.
This tool uses the EPICS network protocol, Channel Access, to read PVs. There is no way to query EPICS V3 IOCs for their database information to determine the available “input” links.
The knowledge of which links to follow for each record type is therefore configured into the EPICS PV Tree application. It is at this time not configurable by end users, but people with access to the source code can determine the syntax from the Settings.java file and override the site-specific settings.