There are not much to say about the deployment of the desktop application. Suffice to remember that installing a add-on “by hand” (as opposed to using → in XMLmind XML Editor - Online Help) is done as follows:
Copy the directory containing the add-on to any of the two addon/ directory scanned by the desktop application during its startup. This scanning process is detailed in Section 1, “Dynamic discovery of add-ons”.
These two addon/ directories are and XXE_install_dir/addon/. More information in What are the two XXE_user_preferences_dir/addon/addon/ directories of XMLmind XML Editor?.
Clear the Quick Start Cache.
This is normally done by using the button found in → , Advanced|Cached data in XMLmind XML Editor - Online Help. However it's often quicker to simply delete the directory.XXE_user_preferences_dir/cache/
Restart XXE.