Sunhouse on the Surface Pad

I just received my first sensory percussion kit and I love it!

One issue I am having (and I chalk it up to my lack of experience) is that the software will not fully occupy my monitor.

I have tried to maximize it or reshape it but I end up with a window inside a window and the sampler only occupies about half of the monitor.

How can I fix this?

I think this is a known issue and just not possible with the current version.