Pick the one SPDS tool you use most, and support the development of practical tools for AutoCAD Plant 3D.
You get a license for 1 tool of your choice: Color Sets, Weld Mapping, P&ID Symbols, Export to DWG or Data Manager.
You choose it yourself in Plant 3D (SPDS → My licenses) and can switch it every 3 days.
Yearly: 2 months free.