Full Screen?

I don’t know whether there is a compatibiity problem with El Capitan, or what. But I cannot get this app to expand to full-screen. The four little arrow “thingies” in the lower right corner turn blue when I swipe over them, but they do not expand the picture. There is no VIEW option in the apps menu, so how the heqq do you fill the screen? The Blu-Ray looks great and I appreciate being able to play both US and European discs but there is no use having HD video playing in a 15” window on a 65” screen. I’ll be happy to upgrade the stars (rating) when I can use my entire monitor to see it.

JBBevan about Leawo Blu-ray Player