In order to install addons that the community has shared, you need to be logged into your TestProject account. You can then navigate to the Addons page where you can find the addon that you want. You can browse through them or use the search option to search for an addon that has the commands you want.
Once you have found the addon that you want, you can click on it to see the details of what it does and what platforms it supports. If you want to be able to use it with your test account you can simply click on the Install button to instantly add it to your account.
Within seconds you will have the addon installed and ready to use in any tests you make!