Mortise and Tenon add-in creates a mortise and tenon joint between two boards. This add-in allows you to specify the dimensions and location of the joint. It is particularly useful in woodworking.

Steps:

1. Press the "Mortise and Tenon" button in the "Modify" panel.
2. Select a board to cut the mortise.
3. Select a face for the tenon.
4. Specify joint depth, length, thickness, offsets, and the number of tenons.
5. Press the "OK" button.

Help online: https://maciejrogowski.com/mortise-and-tenon-help/

Install:
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.

Uninstall:
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 and Features' (Windows 10/11), just as you would uninstall any other application from your system.