We have a Panasonic AW-HE40 located in each auditorium at my church to allow the control room operators to see the space. We also occasionally use them as on-screen cameras since they have HD-SDI outputs. The quality is surprising for the size of the device.
The cameras come with a fully functional webpage that allows you to control them.
By peeking around at the code some, I was able to figure out how to send HTTP requests to change presets of the camera.
Here is my Ross Dashboard custom panel that allows our volunteers to quickly pull up presets:

If you use my panel, you’ll still need to manage/modify the presets using the existing interface. We don’t change our presets often, so I didn’t feel the need to recreate any other functionality than recalling presets.
I’ve made this panel available on Github here if you can benefit from it: https://github.com/josephdadams/RossDashboardPanels