1. Select button SColumnByLine to trigger the add-in.
2. Select Revit detail lines that you want to build the columns from.
3. A dialog will appear requesting you to select Structural Column Family and Level that you want to place new columns. You also have the option to map the Width and Height value of rectangle with the structural column parameters.
4. Click OK.

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) and uninstall as you would any other application from your system.

The 30 days trial with full functions will be active immediately after installing the tool.