Edit: Per a recent video demonstration with Dave, this compatibility was not yet implemented.
https://www.youtube.com/live/x...?si=bf8Gt1uHkLfmNZdO
This is a short clip from the longer video Lionel produced over a year ago about the CAB3 app in conjunction with them announcing the product BASE3. https://www.youtube.com/clip/U...eqNK_cdV-s1-KxjxDU9E
Again, per the video straight from the mouth of Dave- the CAB3 application should be compatible with existing users of Legacy 990 Base and LCS WIFI module.