This plugin allows to customize Slate navigation config from blueprints.
Clone the repository in your project's Plugin directory.
If you want to apply the config immediately after the game starts, go to Project Settings -> Engine -> Slate & Blueprints Navigation Extension, and edit the settings you are presented with.
The plugin comes with an ability to change the config during runtime as well. There are a few functions you can find in Slate Navigation Controller. They are pretty straightforward.
To change a particular property in the existing settings you can do the following:
