Hi hag01,
First video is about Halion 6, the second looks like HSO.
Do you have a Steinberg dongle (usb licenser)? They come with a 24 hour license for all Steinberg applications. This should allow you to demo the HSO for a limited time again.
You could also trial Dorico, it comes with HSO.
Or just try to get another trial. You might be lucky.