1. Select all the connected routing or select take-offs for which you need the dampers to be placed.
2. Run the tool.
3. Select the entire project or run on the selection(recommended).
4. Select to run on vertical or horizontal ducts.
5. Select to run on a round or rectangular duct.
6. Select the needed damper to place.
7. Define the distance between damper and takeoff when there is no wall intersection.
8. Select systems to place dampers on their components.
9. Select Link which contains the walls.
10. Write the distance to place damper after the wall in case of intersection
11. The tool will define shared parameters called "Exclude_Damper_Placement" user can check it if no need to add dampers to specific duct, if not defined you can define it manually as common and yes/no parameter under (duct ,duct fittings duct accesories) categories  under below path :C:\ProgramData\Autodesk\ApplicationPlugins\BIME_Magic_Dampers.bundle\Contents\2019\Documentation\Resources\SharedParams.txt
12. The tool will load the needed dampers, or you can work with your own dampers. In case your damper has the below parameters to control dimensions then it will work with the tool.
    1. The rectangular damper should have a "Duct Width" parameter to control the width and "Duct Height" parameter to control depth.
    2. The round duct should have a "Duct Radius" parameter to control the round damper radius.

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. 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 tool will define shared parameters called "Exclude_Damper_Placement" user can check it if no need to add dampers to specific duct, if not defined you can define it manually as common and yes/no parameter under (duct ,duct fittings duct accesories) categories  under below path :C:\ProgramData\Autodesk\ApplicationPlugins\BIME_Magic_Dampers.bundle\Contents\2019\Documentation\Resources\SharedParams.txt