Command tools are used to execute frequently used commands for tasks other than AEC object creation. For example, the Browse Property Data tool opens a dialog box for browsing the property data of all objects in a drawing; the Renumber Data tool renumbers property data in selected property sets. There are a number of pre-configured command tools in the software; you can, however, create a user-defined command tool from any AutoCAD and AutoCAD Architecture 2021 toolset command, AutoLISP routines, VBA macros and applications, and scripts.