You cannot currently trigger recordings by motion unless your cam is connected to the base station and the base station is connected to the internet (ethernet).
Travel mode can only be used for timelapse and scheduled recordings, and you would not get live view remotely.
You can vote for motion detection recording in travel mode here:
There is also no continuous recording to SD like on their other cameras. The best you can do is set up a scheduled recording - BUT I’ve found that is frustrating (I made a post about it).