Как использовать аддон, установленный после создания проекта, нереальный двигатель

To enable an Unreal Engine plugin, follow these steps:

    From the main menu, go to Edit > Plugins. This opens the Plugins window. ...
    Find the plugin you want to enable using the list on the left of the screen. ...
    To enable a plugin, click the checkbox next to it. ...
    Save your work, then restart Unreal Engine.
Fierce Frog