When installed, my application shows the following on the permissions tab:

There are no member groups to select as I would expect and I am having trouble finding documentation around how this works.

How do I change the permissions on the modules?

Any help would be greatly appreciated!

Does the application have any front modules? You need to click the lock icon on one of those modules to change group permissions.

...and it is added/created by the framework itself when you install the app.

It reflects directy in the canView() method of your Front Navigation extension:

	public function canView()
	{	
		return parent::canView() AND \IPS\Member::loggedIn()->canAccessModule( \IPS\Application\Module::get( 'hangaman', 'hangaman' ) );
	}

The second hangman there is the module, which I'm supposing is hangaman.

Ahhh yes, thank you both!