4.6.3 Rover build with DDS for ROS2

Hello!

I am following this tutorial: ROS 2 over Ethernet — Dev documentation
for connecting my board (CUAV V6X) to a rpi running ros2 humble. It says that I need to build custom firmware with “MicroXRCE DDS support for ROS 2“. However, in the builder page has no such option for the 4.6.3 rover version. Am I missing something? Any help is appreciated, thank you!