This would enable us to present the build options for a combination of selections directly on page load. So that a user can directly go to tick the build options he wants and get a build.
This will be very helpful in redirecting users to custom firmware builder from other sources like firmware.ardupilot.org, or even ground control stations. When a user is looking to download a certain firmware on firmware.ardupilot.org, we can provide him with an option to customize the binaries and bring them here for choosing the features.