Auto correct checksum and missing special characters for NTP GPS initialization commands.
The current NTP GPS configuration has a field for users to customize the GPS initialization commands. These NMEA commands have a checksum at the end of each NMEA sentence to verify the command. The page has a calculator to help users write the initialization commands but even with the calculator next to the initialization commands text field it is still easy for users to get this wrong. Instead there should be an simple optional tool to correct the user inputs to minimize issues.