If you maintain a Siemens Desigo system, . You cannot operate a modern building without it. However, the process is intentionally gated to prevent rogue operators from crashing building systems.
If you are looking for general Desigo tools, the Desigo ABT Site tool (Automation Building Tool) is often available to a wider audience and may not require the same partner-level licensing as XWP. XWORKS plus - SiePortal - Siemens desigo xworks plus download
Allows engineers to define control logic using standardized libraries and templates. If you maintain a Siemens Desigo system,