Version 2.5 can send serial commands to the device. This can be used to change device settings in a generic way for those devices that support receiving commands. Here are some commands for various devices known to work. If you would like to post command for your device please contact us.
When you change a function on uBlox 7 devices, it is lost after a power cycle unless you issue the Save Configuration command.
ublox 7 rates: to controls other NMEA messages, substitute a different type (for instance, GGA instead of RMC)
Bad Elf changes do not persist after disconnect. Issue them each time you connect. More commands can be found here: https://github.com/BadElf/gps-sdk