Zoom in and our of the System Map

[ancientconflict]

Hello

I have played most (if not all) of your games since EU. In recent memory there has been a couple of buttons on the GUI near the map where you can zoom in and out. I am guessing most use a mouse with a wheel but I use a tracker ball mouse which doesn't have a wheel. What keys do I use to zoom out? Or how do I zoom out using the GUI?

Thanks

 

[classicist]

I've been wandering this same thing. I don't have an external mouse on my laptop, so having at least some clue about how to zoom with either keys or GUI would be really lovely.

Otherwise: a gorgeous and immersive game, well done Paradox!