The app creates a toolbar icon under SOLID -> CREATE. The user is prompted to select a planar face with a hole in it. The app automates the process of:

1. Projecting the planar face into a new sketch
2. Offsetting the inner edge to create a 'tab'
3. Extruding the profiles to form the lid and tab

The lid will be generated as a new component. The user can specify the height of the lid, the thickness, and the dimensions of the 'tab' which ensure a tight fit in the hole.

The installer that ran when you downloaded this app/plug-in from Autodesk App Store has already installed the app/plug-in.

OR, simply double-click the MSI to install the app.

You can unload the add-in without uninstalling it by clicking the "Stop" button when the add-in is selected in the list box on the "Add-Ins" tab of the "Scripts and Add-Ins" dialog.

Unchecking "Run on Startup" causes the add-in not to be loaded in future sessions of Autodesk® Fusion 360™.

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, you can uninstall it from 'Control Panel\Programs\Programs and Features' (Windows 7/8.1/10), just as you would uninstall any other application from your system.

If the source geometry is changed by the addition of new lines, the projected sketch will be unlinked and the lid won't update. The solution is to delete the lid and run the command again.