Property Editor Pro adds two dockable tools to Autodesk Inventor: a Properties window for iProperties and mass data, and a Parameters window for document parameter editing. Both stay inside the Inventor workspace so you can review and change data without opening multiple native dialogs. The Properties window supports active-document and selection-driven workflows for parts, assemblies, drawings, presentations, and other Inventor documents that expose iProperties. It can aggregate mass properties across multi-selection, shows VARIES when selected values differ, supports formulas for editable fields, and lets you control exactly which properties appear through layouts, profiles, value lists, and unit settings. The Parameters window extends that workflow to Inventor parameters in part and assembly documents. You can search and filter user, model, and reference parameters, switch numeric parameters between displayed values and expressions, use dropdowns for expression lists where available, and control refresh and update behavior from the shared settings window.