The app can used in 2 methods.
1) Run the command Beam or click on the ribbon icon to launch the app.
Enter the parameter values in the dialog box and click on the OK button to insert a cross section of a beam or column.
2) Run the command BA and follow the command line instructions to insert a cross section of a beam or column.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin. You may need to restart the Autodesk product to activate the app/plug-in. To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, click Control Panel > Programs > Programs and Features (Windows 7/8.1/10/11) and uninstall as you would any other application from your system.