It would be nice if the web interface kept the search window visible while scrolling the device table below. It would be immensely useful when dealing with many devices.
Also would be nice to perform group operations on the entries selected but that's a separate issue
Our Preference Manager App will allow you to set device preferences for multiple devices all at once if that's what you were looking for in regards to group operations.
I did a quick check and it does seem to offer such a capability but a table view on devices would be much simpler and enable me to leverage search.
In looking at the preference manager I didn't see a way to set brightness levels and similar settings.
preference manager presents the preference settings that are included in the driver details, if the driver doesn't have any preferences then none will be available in preference manager for that device...